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发明名称
Verfahren und Einrichtung für eine Zweikanalübertragung.
摘要
申请公布号
CH249976(A)
申请公布日期
1947.07.31
申请号
CHD249976
申请日期
1945.12.15
申请人
"PATELHOLD" PATENTVERWERTUNGS- & ELEKTRO-HOLDING AG.
发明人
AG. "PATELHOLD" PATENTVERWERTUNGS- & ELEKTRO-HOLDING
分类号
H04J9/00
主分类号
H04J9/00
代理机构
代理人
主权项
地址
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