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经营范围
发明名称
Automatic jacking, levelling and lining railroad track tampers
摘要
申请公布号
US3401642(A)
申请公布日期
1968.09.17
申请号
US19660592202
申请日期
1966.11.04
申请人
EARL H. FISHER
发明人
FISHER EARL H.
分类号
E01B27/17
主分类号
E01B27/17
代理机构
代理人
主权项
地址
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