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发明名称
Coupling for cars and train lines
摘要
申请公布号
US1876918(A)
申请公布日期
1932.09.13
申请号
US19310548450
申请日期
1931.07.02
申请人
GRAY
发明人
GRAY GEORGE;KINGSTON CARNEGIE
分类号
B61G5/08
主分类号
B61G5/08
代理机构
代理人
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地址
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