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发明名称
Car coupler
摘要
申请公布号
US2709007(A)
申请公布日期
1955.05.24
申请号
US19490125323
申请日期
1949.11.03
申请人
NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
METZGER WILLIAM J.
分类号
B61G3/06
主分类号
B61G3/06
代理机构
代理人
主权项
地址
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