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经营范围
发明名称
Apparatus for simultaneously transmitting a plurality of messages
摘要
申请公布号
US2978544(A)
申请公布日期
1961.04.04
申请号
US19550509994
申请日期
1955.05.20
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
HOLZWARTH HERBERT;ARENS WALTER
分类号
H04J3/04
主分类号
H04J3/04
代理机构
代理人
主权项
地址
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