USD315912SExpiredUtility

Vacuum pump

55
Assignee: MITSUBISHI ELECTRIC CORPPriority: Sep 21, 1988Filed: Mar 14, 1989Granted: Apr 2, 1991
Est. expirySep 21, 2008(expired)· nominal 20-yr term from priority
Inventors:Mitsuhiro NishidaKozaburo FujiiNobuyuki KondohYoshinori Abe
55
PatentIndex Score
7
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a vacuum pump, as shown and described.

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