Patent Assignment Details
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| Reel/Frame: | 005360/0661 | |
| Pages: | 3 |
| | Recorded: | 07/05/1990 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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11/06/1990
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Application #:
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07261540
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Filing Dt:
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10/24/1988
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Title:
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MAGNETIC MARKING APPARATUS FOR MAGNETICALLY MEASURING DISPLACEMENT OF A MOVEABLE ELEMENT IN A WELL
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Assignee
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| TOUR ELF CEDEX 45 |
| 92078 PARIS LA DEFENSE, FRANCE |
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Correspondence name and address
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OBLON, SPIVAK, MCCELLAND, ET AL
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FOURTH FLOOR
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1755 JEFFERSON DAVIS HIGHWAY
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ARLINGTON, VA 22202
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