USD246533SExpiredUtility

Air valve for pipelines

7
Assignee: GEORGE KENT MALAYSIA BERHADPriority: Sep 26, 1975Filed: Mar 15, 1976Granted: Nov 29, 1977
Est. expirySep 26, 1995(expired)· nominal 20-yr term from priority
Inventors:William Henry Brockbank
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PatentIndex Score
0
Cited by
3
References
1
Claims

Claims

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

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