Title:
Self-contained electrical musical instrument
United States Patent 3194870
Inventors:
Tondreau, Albert W.
Geyer, Leon F.
Trotto, William A.
Publication Date:
07/13/1965
Assignee:
Tondreau, Albert W.
Geyer, Leon F.
Trotto, William A.
Other Classes:
984/107, 84/741
International Classes:
G10D1/08; G10D1/00