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发明名称
Empfangs- und Anzeigevorrichtung für Wechselstromsignale in handbedienten Telephonzentralen
摘要
申请公布号
CH316035(A)
申请公布日期
1956.09.15
申请号
CHD316035
申请日期
1953.11.28
申请人
AUTOPHON AKTIENGESELLSCHAFT
发明人
分类号
H04M3/64
主分类号
H04M3/64
代理机构
代理人
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地址
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