Patent Assignment Details
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| Reel/Frame: | 006747/0810 | |
| Pages: | 3 |
| | Recorded: | 11/03/1993 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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02/08/1994
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Application #:
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07920556
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Filing Dt:
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10/13/1992
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Title:
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DOWN-THE-HOLE DRILL TOOL FOR DRILLING IN ADVANCE OF A CASING TUBE
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Assignee
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| S-811 81 SANDVIKEN, SWEDEN |
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Correspondence name and address
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BURNS, DOANE, SWECKER & MATHIS
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RONALD L. GRUDZIECKI, ESQ.
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THE GEORGE MASON BUILDING - WASHINGTON
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& PRINCE STREETS - P.O. BOX 1404
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ALEXANDRIA, VIRGINIA 22313-1404
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