USD260739SExpiredUtility

Viscometer

31
Assignee: HALLIBURTON COPriority: Nov 19, 1979Filed: Nov 19, 1979Granted: Sep 15, 1981
Est. expiryNov 19, 1999(expired)· nominal 20-yr term from priority
Inventors:Peyton N. Randolph
31
PatentIndex Score
3
Cited by
5
References
1
Claims

Claims

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

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