USD287938SExpiredUtility

Retention washer

Assignee: SACHS ISAACPriority: Jun 15, 1984Filed: Jun 15, 1984Granted: Jan 27, 1987
Est. expiryJun 15, 2004(expired)· nominal 20-yr term from priority
Inventors:Isaac Sachs
58
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a retention washer, as shown.

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