Piano

Details Piano Piano

1989-12-05

1992-03-10

Feifer, Melvin B.

Musical instruments

Keyboard type

Piano or cabinet therefor

Patent

active

D03245314

REFERENCES:
patent: D104895 (1937-06-01), Zack
patent: D112353 (1938-11-01), Zack
patent: D154867 (1949-08-01), Millington et al.
patent: D220548 (1971-04-01), Ferris et al.
patent: 2649007 (1953-08-01), Anderson

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