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摘要
申请公布号
US1871840(A)
申请公布日期
1932.08.16
申请号
US19310515257
申请日期
1931.02.12
申请人
FILING EQUIPMENT BUREAU, INCORPORATED
发明人
COBB CHARLES H.
分类号
A47B63/06
主分类号
A47B63/06
代理机构
代理人
主权项
地址
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