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经营范围
发明名称
STUETZE FUER FERNSPRECHHOERER.
摘要
申请公布号
DE1673267(U)
申请公布日期
1954.03.11
申请号
DE195300W7058U
申请日期
1953.01.14
申请人
EWALD WINZEN
发明人
EWALD WINZEN
分类号
主分类号
代理机构
代理人
主权项
地址
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