USD310772SExpiredUtility

Multi-vial level attachment for hand-held drills

58
Individually held — no corporate assignee on recordPriority: Apr 24, 1986Filed: Apr 24, 1986Granted: Sep 25, 1990
Est. expiryApr 24, 2006(expired)· nominal 20-yr term from priority
Inventors:David Johnson
58
PatentIndex Score
8
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a multi-vial level attachment for hand-held drills, as shown and described.

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