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发明名称
PROPELLER.
摘要
申请公布号
DE1642404(U)
申请公布日期
1952.08.14
申请号
DE195100B4711U
申请日期
1951.02.27
申请人
JOSEF BECKER
发明人
JOSEF BECKER
分类号
主分类号
代理机构
代理人
主权项
地址
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