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发明名称
MATERIAL CONTACTING APPARATUS
摘要
申请公布号
US3457708(A)
申请公布日期
1969.07.29
申请号
USD3457708
申请日期
1967.03.06
申请人
PHILLIPS PETROLEUM CO.
发明人
DONALD D. DEFORD
分类号
G01N30/42;(IPC1-7):B01D15/08
主分类号
G01N30/42
代理机构
代理人
主权项
地址
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