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Automatic control of amplification
United States Patent 2098370
Inventors:
Hans, Bartels
Publication Date:
11/09/1937
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Download PDF 2098370
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Assignee:
TELEFUNKEN GMBH
Primary Class:
323/229
Other Classes:
369/134, 327/314, 381/104, 330/145, 333/81R
International Classes:
H03G7/00