Musical instruments – Keyboard type – Accordion
Patent
1978-01-18
1980-08-26
Stearman, Joel
Musical instruments
Keyboard type
Accordion
D17 1, D17 9, D1701
Patent
active
D02565900
REFERENCES:
patent: D102417 (1936-12-01), Defonso
patent: D186470 (1959-10-01), Pancotti
patent: D224444 (1972-07-01), Chilton et al.
patent: D225274 (1972-11-01), Shabbarrasi
patent: D235161 (1975-05-01), Mayer et al.
Corrigan Jane E.
FM Musical Instruments, Inc.
Lerner Lawrence I.
Stearman Joel
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