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经营范围
发明名称
CONTINUOUSLY OPERATING TRACK WORK MOBILE MACHINE
摘要
申请公布号
PL159010(B1)
申请公布日期
1992.11.30
申请号
PL19880274261
申请日期
1988.08.17
申请人
发明人
分类号
E01B27/20;E01B27/04;E01B27/17;(IPC1-7):E01B27/12
主分类号
E01B27/20
代理机构
代理人
主权项
地址
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