Title:
TUNING FORK STRUCTURES
United States Patent 3493292

Inventors:
Dostal, Frank
Publication Date:
02/03/1970
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Assignee:
BULOVA WATCH CO INC
Primary Class:
359/230
Other Classes:
331/155, 331/156
International Classes:
G01J1/36; G02B26/04; H03B5/30; H03H9/24; G01J1/10; G02B26/02; H03H9/00; G02F1/30; H03B5/30
US Patent References:
2581963Reed for electrical music instruments
3093743Resonant reed frequency sensitive control apparatus
3178579Photosensitive tuning fork scanner
3192701Vibratory motion converter for an electric timepiece
3350667Electrostatic tuning fork resonator
Foreign References:
CA446444A




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