Method and apparatus for automatically tuning mechanical frequency sources
United States Patent 3230614
Inventors:
Gerhard, Rasch
Publication Date:
01/25/1966
Assignee:
Musikinstrumentenbau, Musima VE.
Other Classes:
209/599, 451/28, 324/76.490, 984/204, 84/454, 84/456, 409/133, 29/407.050
International Classes:
G01H13/00; G10F1/06; G10F1/00