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发明名称
Schaltungsanordnung fuer Fernsprechanlagen
摘要
申请公布号
DE746699(C)
申请公布日期
1944.08.18
申请号
DE1936T047021D
申请日期
1936.06.11
申请人
TELEFONBAU UND NORMALZEIT LEHNER & CO.
发明人
分类号
H04Q3/62
主分类号
H04Q3/62
代理机构
代理人
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