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经营范围
发明名称
Car coupler
摘要
申请公布号
US2692690(A)
申请公布日期
1954.10.26
申请号
US19510211500
申请日期
1951.02.17
申请人
NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
METZGER WILLIAM J.
分类号
B61G3/16
主分类号
B61G3/16
代理机构
代理人
主权项
地址
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