Title:
Musical instrument keyboard
United States Patent 3342094


Inventors:
Wilson, Ervin M.
Application Number:
US59217466A
Publication Date:
09/19/1967
Filing Date:
11/04/1966
Assignee:
Wilson, Ervin M.
Primary Class:
Other Classes:
84/423B, 84/DIG.25
International Classes:
G10H1/34
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Other References:
None