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发明名称
Pivot-straightening device
摘要
申请公布号
US1747136(A)
申请公布日期
1930.02.11
申请号
US19280265424
申请日期
1928.03.28
申请人
PUTNAM GEORGE F
发明人
PUTNAM GEORGE F.
分类号
G04D7/08
主分类号
G04D7/08
代理机构
代理人
主权项
地址
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