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经营范围
发明名称
Hangerless brake beam
摘要
申请公布号
US1784917(A)
申请公布日期
1930.12.16
申请号
US19270191422
申请日期
1927.05.14
申请人
CHICAGO RAILWAY EQUIPMENT COMPANY
发明人
WALKER CHARLES I.
分类号
B61H13/36
主分类号
B61H13/36
代理机构
代理人
主权项
地址
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