USD244190SExpiredUtility

Well drilling vehicle

58
Assignee: DRILTECH INCPriority: Sep 2, 1975Filed: Sep 2, 1975Granted: May 3, 1977
Est. expirySep 2, 1995(expired)· nominal 20-yr term from priority
Inventors:Richard H. SwartzRichard J. PearceJames M. Bowe
58
PatentIndex Score
7
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a well drilling vehicle, as shown and described.

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