KEY SWITCH FOR ELECTRONIC KEYED INSTRUMENTS
United States Patent 3480744

Inventors:
Yamada, Hisayoshi
Publication Date:
11/25/1969
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Assignee:
VICTOR COMPANY OF JAPAN
Primary Class:
200/1A
Other Classes:
200/249, 984/345, 84/433, 84/678
International Classes:
G10H1/34; H01H9/00; G10H1/02; H01H3/00
US Patent References:
3106618Mutually exclusive stop switch mechanism
3251923Keyboard operated electrical switches
3317684Stop tablet and filter assembly with improved separable resilient positioning means
3330176Key and key mounting structure




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