USD342782SExpiredUtility

Duct close elbow

83
Assignee: BUILDERS BEST INCPriority: Jan 31, 1992Filed: Jan 31, 1992Granted: Dec 28, 1993
Est. expiryJan 31, 2012(expired)· nominal 20-yr term from priority
Inventors:Charles B. AndersonCharles R. Kenrick
83
PatentIndex Score
26
Cited by
12
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a duct close elbow, as shown and described.

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