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发明名称
DOPPEL-KRAWATTE.
摘要
申请公布号
DE1612464(U)
申请公布日期
1950.08.31
申请号
DE195000B2488U
申请日期
1950.07.11
申请人
HEINRICH BRUNS
发明人
HEINRICH BRUNS
分类号
主分类号
代理机构
代理人
主权项
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