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发明名称
Wire spring structure
摘要
申请公布号
US3044831(A)
申请公布日期
1962.07.17
申请号
US19590849688
申请日期
1959.10.29
申请人
HOOVER BALL & BEARING CO.
发明人
NEELY WILLIAM H.
分类号
A47C7/28
主分类号
A47C7/28
代理机构
代理人
主权项
地址
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