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发明名称
Last
摘要
申请公布号
US1758706(A)
申请公布日期
1930.05.13
申请号
US19270213764
申请日期
1927.08.18
申请人
FRANZ KELNHOFER
发明人
KELNHOFER FRANZ
分类号
A43D3/02
主分类号
A43D3/02
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