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发明名称
Contact apparatus with rotating discs
摘要
申请公布号
US2729544(A)
申请公布日期
1956.01.03
申请号
US19510245507
申请日期
1951.09.07
申请人
SHELL DEVELOPMENT COMPANY
发明人
PIETERS WILLEM JOHAN
分类号
B01D11/04
主分类号
B01D11/04
代理机构
代理人
主权项
地址
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