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发明名称
Electronic apparatus
摘要
申请公布号
US2316044(A)
申请公布日期
1943.04.06
申请号
US19410415574
申请日期
1941.10.18
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BLAIR ROYER R.
分类号
H03F1/54;H03F3/32;H04B1/16
主分类号
H03F1/54
代理机构
代理人
主权项
地址
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