USD323376SExpiredUtility

Knife gate valve

37
Assignee: OKUMURA ENG WORKS CO LTDPriority: Sep 30, 1988Filed: Sep 30, 1988Granted: Jan 21, 1992
Est. expirySep 30, 2008(expired)· nominal 20-yr term from priority
Inventors:Masaharu Fukuchi
37
PatentIndex Score
5
Cited by
14
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a knife gate valve, as shown and described.

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