Violin learning board

Office supplies; artists and teachers materials – Teaching material

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D17 17

Patent

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D02864134

REFERENCES:
patent: D45986 (1914-06-01), Burrows
patent: D269352 (1983-06-01), Lower
patent: 959318 (1910-05-01), Dessureau
patent: 1419440 (1922-06-01), Ashley
patent: 1700395 (1929-01-01), Yukl
Vital Statistics, Music Trade Show, Chicago, Ill., Jul. 21-24, 1958, bottom right of page.

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