USD247119SExpiredUtility

Music teaching aid

56
Assignee: Almqvist & Wiksell Laromedel ABPriority: Oct 7, 1975Filed: Mar 31, 1976Granted: Jan 31, 1978
Est. expiryOct 7, 1995(expired)· nominal 20-yr term from priority
Inventors:Folke NilssonBengt E. Lindahl
56
PatentIndex Score
8
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a music teaching aid, as shown.

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