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发明名称
摘要
申请公布号
DE2745141(B2)
申请公布日期
1980.04.10
申请号
DE19772745141
申请日期
1977.10.07
申请人
COAL INDUSTRY (PATENTS) LTD., LONDON
发明人
JAMES, GRANVILLE COLLINS, ASHBY-DE-LA- ZOUCH, LEICESTERSHIRE (VER. KOENIGREICH)
分类号
B01D39/12;B01D46/12;B01D50/00;E21F5/20;(IPC1-7):B01D47/06
主分类号
B01D39/12
代理机构
代理人
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