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发明名称
Hel- eller halvautomatisk Telefonsystem.
摘要
申请公布号
DK46755(C)
申请公布日期
1933.01.09
申请号
DKD46755
申请日期
1929.06.29
申请人
STANDARD ELECTRIC AKTIESELSKAB (STANDARD ELECTRIC LTD.)
发明人
分类号
主分类号
代理机构
代理人
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