Method of generating ultraradio frequency sound-modulated oscillations
United States Patent 2015523

Inventors:
Waldemar, Ilberg
Publication Date:
09/24/1935
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Assignee:
TELEFUNKEN GMBH
Primary Class:
331/92
Other Classes:
331/93, 331/172, 331/185, 375/309
International Classes:
H01J25/68; H01J25/00