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发明名称
Alarm-Rufnummernschild fuer Fernsprecher
摘要
申请公布号
DE881956(C)
申请公布日期
1953.07.06
申请号
DE1951B015044
申请日期
1951.05.19
申请人
BERNHEIM KURT
发明人
BERNHEIM KURT
分类号
H04M1/23
主分类号
H04M1/23
代理机构
代理人
主权项
地址
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