USD255357SExpiredUtility

Industrial vacuum cleaner

88
Assignee: NAT UNION ELECTRIC CORPORATIONPriority: May 5, 1976Filed: May 5, 1976Granted: Jun 10, 1980
Est. expiryMay 5, 1996(expired)· nominal 20-yr term from priority
Inventors:Joseph F. BrooksVernon E. Flanders
88
PatentIndex Score
31
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an industrial vacuum cleaner, as shown and described.

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