Title:
Crystal-controlled oscillator
Document Type and Number:
United States Patent 1840580
Inventors:
Heising, Raymond A.
Plaque It!
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Publication Date:
01/12/1932
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Referenced by:
Export Citation:
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
310/318, 331/163, 310/366, 331/164, 331/158, 331/162, 310/315
International Classes:
H03H9/13; H03H9/125