Total properties:
13
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Patent #:
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Issue Dt:
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Application #:
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05551285
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Filing Dt:
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Title:
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?
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Patent #:
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Issue Dt:
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01/06/1981
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Application #:
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05943679
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Filing Dt:
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09/19/1978
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Title:
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HOLD CIRCUIT FOR TELEPHONE SYSTEM
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Patent #:
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Issue Dt:
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02/17/1981
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Application #:
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05949014
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Filing Dt:
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10/06/1978
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Title:
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TELEPHONE CALL RESTRICTING APPARATUS
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Patent #:
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Issue Dt:
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08/07/1984
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Application #:
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06456257
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Filing Dt:
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01/06/1983
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Title:
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HOLD CIRCUIT FOR TELEPHONE SYSTEM
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Patent #:
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Issue Dt:
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02/16/1988
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Application #:
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06596357
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Filing Dt:
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04/03/1984
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Title:
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TELEPHONE PRIVACY CIRCUIT
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Patent #:
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Issue Dt:
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12/02/1986
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Application #:
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06684021
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Filing Dt:
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12/20/1984
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Title:
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TELEPHONE CALL FORWARDING DEVICE
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Patent #:
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Issue Dt:
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06/02/1987
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Application #:
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06724065
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Filing Dt:
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04/17/1985
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Title:
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SINGLE LINE TELEPHONE CALL FORWARDING DEVICE
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Patent #:
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Issue Dt:
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08/30/1988
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Application #:
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07056457
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Filing Dt:
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06/01/1987
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Title:
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SINGLE TELEPHONE LINE CALL FORWARDING DEVICE
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Patent #:
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Issue Dt:
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07/10/1990
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Application #:
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07140386
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Filing Dt:
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01/04/1988
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Title:
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MUTING CIRCUIT FOR TELEPHONE ANSWERING MACHINE
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Patent #:
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Issue Dt:
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12/01/1992
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Application #:
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07322217
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Filing Dt:
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03/13/1989
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Title:
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APPARATUS AND METHODS FOR SELECTIVELY FORWARDING TELEPHONE CALLS
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Patent #:
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Issue Dt:
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07/14/1992
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Application #:
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07397971
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Filing Dt:
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08/24/1989
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Title:
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HOLD CIRCUITS FOR TELEPHONE SYSTEMS
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Patent #:
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Issue Dt:
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10/20/1992
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Application #:
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07491933
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Filing Dt:
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03/12/1990
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Title:
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AUTOMATIC AREA CODE DIALING APPARATUS AND METHODS PARTICULARLY ADAPTED FOR CELLULAR OR OTHER TYPES OF TELEPHONE SYSTEMS
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Patent #:
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Issue Dt:
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12/28/1993
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Application #:
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07554133
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Filing Dt:
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07/17/1990
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Title:
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ABBREVIATED AND ENHANCED DIALING APPARATUS AND METHODS PARTICULARLY ADAPTED FOR CELLULAR OR OTHER TYPES OF TELEPHONE SYSTEMS
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