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经营范围
发明名称
SELF-PROPELLED TRACK CLEANING MACHINE
摘要
申请公布号
PL124220(B1)
申请公布日期
1983.01.31
申请号
PL19790215208
申请日期
1979.04.27
申请人
发明人
分类号
E01B27/10;(IPC1-7):E01B27/06
主分类号
E01B27/10
代理机构
代理人
主权项
地址
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