USD262938SExpiredUtility
Drilling alignment tool
Individually held — no corporate assignee on recordPriority: Jul 5, 1978Filed: Jul 5, 1978Granted: Feb 9, 1982
Est. expiryJul 5, 1998(expired)· nominal 20-yr term from priority
Inventors:Herbert Schulze
82
PatentIndex Score
15
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a drilling alignment tool, as shown and described.
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