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摘要
申请公布号
US2102820(A)
申请公布日期
1937.12.21
申请号
US19360081382
申请日期
1936.05.23
申请人
SOL SCHEINMAN
发明人
SCHEINMAN SOL
分类号
A47B63/02
主分类号
A47B63/02
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代理人
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