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经营范围
发明名称
DUST COLLECTOR IMPROVEMENT
摘要
申请公布号
US3520109(A)
申请公布日期
1970.07.14
申请号
USD3520109
申请日期
1968.09.12
申请人
ASHLAND OIL & REFINING CO.
发明人
EDDIE K. CASKEY
分类号
B01D46/02;(IPC1-7):B01D46/04
主分类号
B01D46/02
代理机构
代理人
主权项
地址
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