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摘要
申请公布号
US1755782(A)
申请公布日期
1930.04.22
申请号
US19280263854
申请日期
1928.03.22
申请人
HONSTEAD SEVERN G
发明人
HONSTEAD SEVERN G.
分类号
A47F9/00
主分类号
A47F9/00
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