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发明名称
KELLNERRUF.
摘要
申请公布号
DE1605336(U)
申请公布日期
1950.04.20
申请号
DE195000SC681U
申请日期
1950.01.19
申请人
RICHARD SCHOOFF
发明人
RICHARD SCHOOFF
分类号
主分类号
代理机构
代理人
主权项
地址
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