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发明名称
MOBILE MACHINE FOR TRACK CLEANING AND A METHOD FOR TRACK CLEANING
摘要
申请公布号
PL161304(B1)
申请公布日期
1993.06.30
申请号
PL19890278696
申请日期
1989.04.07
申请人
发明人
分类号
E01B19/00;E01B27/10;E01H1/08;E01H1/10;E01H8/00;(IPC1-7):E01H1/08;E01B27/06
主分类号
E01B19/00
代理机构
代理人
主权项
地址
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