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Reel/Frame:023710/0004   Pages: 3
Recorded: 12/15/2009
Attorney Dkt #:PGS-09-26US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 1
1
Patent #:
NONE
Issue Dt:
Application #:
12653493
Filing Dt:
12/15/2009
Publication #:
Pub Dt:
06/16/2011
Title:
Electromagnetic system for timing synchronization and location determination for seismic sensing systems having autonomous (NODAL) recording units
Assignors
1
Exec Dt:
12/15/2009
2
Exec Dt:
12/15/2009
Assignee
1
15150 MEMORIAL DRIVE
HOUSTON, TEXAS 77079
Correspondence name and address
E. EUGENE THIGPEN
PETROLEUM-GEO SERVICES, INC.
15150 MEMORIAL DRIVE
HOUSTON, TX 77079

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