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摘要
申请公布号
US2334740(A)
申请公布日期
1943.11.23
申请号
US19420433001
申请日期
1942.03.02
申请人
ACOSTA MIGUEL B
发明人
ACOSTA MIGUEL B.
分类号
A47G25/74
主分类号
A47G25/74
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