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发明名称
Spike puller
摘要
申请公布号
US2122212(A)
申请公布日期
1938.06.28
申请号
US19370138048
申请日期
1937.04.20
申请人
NICHOLS PAUL G;NICHOLS JAMES D
发明人
NICHOLS PAUL G.;NICHOLS JAMES D.
分类号
E01B29/26
主分类号
E01B29/26
代理机构
代理人
主权项
地址
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