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发明名称
Tensioning device for seat bottoms
摘要
申请公布号
US1987921(A)
申请公布日期
1935.01.15
申请号
US19330651670
申请日期
1933.01.14
申请人
BERTSCH HERBERT T
发明人
BERTSCH HERBERT T.
分类号
A47C7/22
主分类号
A47C7/22
代理机构
代理人
主权项
地址
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