Musical instruments – Percussion instrument
Patent
1984-09-04
1987-03-10
Spangler, Robert C.
Musical instruments
Percussion instrument
Patent
active
D02886960
REFERENCES:
patent: D151447 (1948-10-01), Halbriter
patent: 3029679 (1962-04-01), La Londe
patent: 4254685 (1981-03-01), Rose
Hoshino Gakki Co. Ltd.
Spangler Robert C.
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