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发明名称
Mehrkanal-Gegensprech-UEbertragungsstrecke ueber Relaisstationen
摘要
申请公布号
DE857827(C)
申请公布日期
1952.12.01
申请号
DE1951SC06382
申请日期
1951.04.19
申请人
SCHROETER FRITZ DR.
发明人
SCHROETER FRITZ DR.
分类号
H04B1/38;H04B7/155;H04L25/24
主分类号
H04B1/38
代理机构
代理人
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