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发明名称
Car retarder
摘要
申请公布号
US1761649(A)
申请公布日期
1930.06.03
申请号
US19250025775
申请日期
1925.04.25
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
VENCILL ALBERT L.
分类号
B61K7/06
主分类号
B61K7/06
代理机构
代理人
主权项
地址
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