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发明名称
Impulse transmitter
摘要
申请公布号
US2451358(A)
申请公布日期
1948.10.12
申请号
US19440551010
申请日期
1944.08.24
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
SARGISSON ROBERT L.;OBERGFELL AMANDA
分类号
H04M1/23
主分类号
H04M1/23
代理机构
代理人
主权项
地址
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