USD278087SExpiredUtility
Eyepiece for gas masks
Est. expiryFeb 3, 2002(expired)· nominal 20-yr term from priority
Inventors:Erwin Pruefer
43
PatentIndex Score
8
Cited by
12
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an eyepiece for gas masks, substantially as shown and described.
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