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发明名称
Schwimmhilfe
摘要
申请公布号
DE1942690(A1)
申请公布日期
1971.03.04
申请号
DE19691942690
申请日期
1969.08.21
申请人
HERWEG,ARNULF
发明人
HERWEG,ARNULF
分类号
A63B31/08
主分类号
A63B31/08
代理机构
代理人
主权项
地址
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