USD365666SExpiredUtility

Welding helmet

Assignee: OPTREL AGPriority: Mar 18, 1993Filed: Mar 18, 1993Granted: Dec 26, 1995

Est. expiryMar 18, 2013(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for welding helmet, as shown.

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