USD271587SExpiredUtility
Combined vacuum pump and control valve therefor
Est. expiryApr 30, 2001(expired)· nominal 20-yr term from priority
Inventors:Yoji Ise
70
PatentIndex Score
11
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a combined vacuum pump and control valve therefor, substantially as shown and described.
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