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摘要
申请公布号
US2284952(A)
申请公布日期
1942.06.02
申请号
US19390304070
申请日期
1939.11.13
申请人
PALMER DUEY HAROLD
发明人
DUEY HAROLD PALMER
分类号
A46B11/00
主分类号
A46B11/00
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