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发明名称
Contact device
摘要
申请公布号
US2862698(A)
申请公布日期
1958.12.02
申请号
US19560558982
申请日期
1956.01.13
申请人
COLUMBIA-SOUTHERN CHEMICAL CORPORATION
发明人
HOWERTON ARTHUR E.;DALE KENNETH R.
分类号
B01D3/16;B01D3/20;B01D47/02
主分类号
B01D3/16
代理机构
代理人
主权项
地址
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