USD256798SExpiredUtility
Constant distortion volume control unit
Individually held — no corporate assignee on recordPriority: Mar 3, 1978Filed: Mar 3, 1978Granted: Sep 9, 1980
Est. expiryMar 3, 1998(expired)· nominal 20-yr term from priority
Inventors:Donald T. Scholz
41
PatentIndex Score
2
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a constant distortion volume control unit, as shown and described.
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