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发明名称
RAIL TIE PLATE PUNCHING APPARATUS
摘要
申请公布号
CA411457(A)
申请公布日期
1943.03.30
申请号
CAD411457
申请日期
申请人
THE COLORADO FUEL AND IRON CORPORATION
发明人
MARVIN L. CANTRELL;OSCAR A. HED
分类号
主分类号
代理机构
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