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发明名称
Automatic volume control circuits
摘要
申请公布号
US2505550(A)
申请公布日期
1950.04.25
申请号
US19450609415
申请日期
1945.08.07
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KETCHIEDGE RAYMOND W.
分类号
H03G3/22;H04B3/04
主分类号
H03G3/22
代理机构
代理人
主权项
地址
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