USD264493SExpiredUtility

Butterfly valve

27
Assignee: KAELLE EUR CONTROLPriority: Mar 27, 1979Filed: May 19, 1980Granted: May 18, 1982
Est. expiryMar 27, 1999(expired)· nominal 20-yr term from priority
Inventors:Gustav B. Nyberg
27
PatentIndex Score
1
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10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a butterfly valve, as shown.

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