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发明名称
Track rail grinding machine
摘要
申请公布号
US2163908(A)
申请公布日期
1939.06.27
申请号
US19380219750
申请日期
1938.07.18
申请人
WALTER HOBSON;WOODROW HOMER H
发明人
HOBSON WALTER;WOODROW HOMER H.
分类号
E01B31/17
主分类号
E01B31/17
代理机构
代理人
主权项
地址
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