USD325780SExpiredUtility

Combined respirator mouthpiece and filter

Assignee: HERBERT NICHOLASPriority: Aug 1, 1989Filed: Aug 1, 1989Granted: Apr 28, 1992

Est. expiryAug 1, 2009(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a combined respirator mouthpiece and filter, as shown and described.

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