USD551961SExpiredUtility

Rotary shaft nut of a welding mask

55
Assignee: OTOS TECH CO LTDPriority: Oct 18, 2005Filed: Apr 18, 2006Granted: Oct 2, 2007
Est. expiryOct 18, 2025(expired)· nominal 20-yr term from priority
Inventors:Moon Young Huh
55
PatentIndex Score
9
Cited by
35
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       I claim, the ornamental design for a rotary shaft nut of a welding mask, as shown and described.

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