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经营范围
发明名称
MINING SCRAPER LOADER
摘要
申请公布号
PL115922(B2)
申请公布日期
1981.05.30
申请号
PL19790219762
申请日期
1979.11.21
申请人
发明人
分类号
B65G;E02F3/50;E21F;(IPC1-7):E02F3/50
主分类号
B65G
代理机构
代理人
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地址
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