USD483660SExpiredUtility
Safety washer
Est. expirySep 13, 2022(expired)· nominal 20-yr term from priority
Inventors:Chun Chor Cheng
37
PatentIndex Score
9
Cited by
10
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a safety washer, as shown and described.
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