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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
02/15/2011
Application #:
12844102
Filing Dt:
07/27/2010
Publication #:
Pub Dt:
11/18/2010
Inventors:
John E. Mercer, Albert W. Chau
Title:
TRACKING THE POSITIONAL RELATIONSHIP BETWEEN A BORING TOOL AND ONE OR MORE BURIED LINES USING A COMPOSITE MAGNETIC SIGNAL
Assignment: 1
Reel/Frame:
024746/0140Recorded: 07/27/2010Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
05/26/1999
Exec Dt:
05/26/1999
Assignee:
425 SW 41ST STREET
RENTON, WASHINGTON 98005
Correspondent:
JAY R BEYER
993 GAPTER ROAD
BOULDER, CO 80303
Assignment: 2
Reel/Frame:
024746/0176Recorded: 07/27/2010Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
05/01/2003
Assignee:
425 SW 41ST STREET
RENTON, WASHINGTON 98055
Correspondent:
JAY R BEYER
993 GAPTER ROAD
BOULDER, CO 80303

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