USD258994SExpiredUtility

Breathing mask

Assignee: GRANE CHRISTIANPriority: Mar 17, 1978Filed: Jul 5, 1978Granted: Apr 21, 1981

Est. expiryMar 17, 1998(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for breathing mask, as shown and described.

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