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发明名称
SLEDGE WITH A CHAIN GUIDE FOR COMBINED COAL CUTTER LOADER CHAIN
摘要
申请公布号
PL137054(B1)
申请公布日期
1986.04.30
申请号
PL19820237917
申请日期
1982.08.12
申请人
发明人
分类号
E21C;E21C29/24;(IPC1-7):E21C29/24
主分类号
E21C
代理机构
代理人
主权项
地址
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