USD482503SExpiredUtility

Welding mask

Assignee: OTOS OPTICAL CO LTDPriority: Oct 4, 2002Filed: Oct 4, 2002Granted: Nov 18, 2003

Est. expiryOct 4, 2022(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for a welding mask, as shown and described.

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