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发明名称
Device for operating car couplers
摘要
申请公布号
US1800398(A)
申请公布日期
1931.04.14
申请号
US19290343156
申请日期
1929.02.27
申请人
UNION METAL PRODUCTS COMPANY
发明人
MURPHY WALTER P.
分类号
B61G3/08
主分类号
B61G3/08
代理机构
代理人
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地址
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