USD272821SExpiredUtility

Air switch

Assignee: CALIFORNIA COOPERAGEPriority: Sep 25, 1981Filed: Sep 25, 1981Granted: Feb 28, 1984
Est. expirySep 25, 2001(expired)· nominal 20-yr term from priority
71
PatentIndex Score
12
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air switch, substantially as shown and described.

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