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发明名称
Tamping vehicles
摘要
申请公布号
US2920540(A)
申请公布日期
1960.01.12
申请号
US19570639502
申请日期
1957.02.11
申请人
BAKER RHEA V
发明人
BAKER RHEA V.
分类号
E01C19/34
主分类号
E01C19/34
代理机构
代理人
主权项
地址
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