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经营范围
发明名称
Buffer for railway cars
摘要
申请公布号
US1864315(A)
申请公布日期
1932.06.21
申请号
US19270211304
申请日期
1927.08.08
申请人
UNIVERSAL DRAFT GEAR ATTACHMENT CO.
发明人
NASH CHARLES J.;CANFIELD LEWIS T.
分类号
B61G9/10
主分类号
B61G9/10
代理机构
代理人
主权项
地址
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