USD272446SExpiredUtility
Digital transfer switch with diagnostic display
Individually held — no corporate assignee on recordPriority: Jun 8, 1981Filed: Jun 8, 1981Granted: Jan 31, 1984
Est. expiryJun 8, 2001(expired)· nominal 20-yr term from priority
36
PatentIndex Score
6
Cited by
10
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a digital transfer switch with diagnostic display, as shown and described.
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