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摘要
申请公布号
US1933098(A)
申请公布日期
1933.10.31
申请号
US19300451986
申请日期
1930.05.13
申请人
DENNETT FORREST B
发明人
DENNETT FORREST B.
分类号
A43D3/02
主分类号
A43D3/02
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