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经营范围
发明名称
Cushion structure
摘要
申请公布号
US2272493(A)
申请公布日期
1942.02.10
申请号
US19380205039
申请日期
1938.04.29
申请人
WILLIAMS HAROLD E
发明人
WILLIAMS HAROLD E.
分类号
A47C27/04
主分类号
A47C27/04
代理机构
代理人
主权项
地址
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