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发明名称
Filter leaf
摘要
申请公布号
US2249063(A)
申请公布日期
1941.07.15
申请号
US19380207450
申请日期
1938.05.12
申请人
TEXAS GULF SULPHUR COMPANY
发明人
SWEM HARRY A.
分类号
B01D29/00;B01D37/00
主分类号
B01D29/00
代理机构
代理人
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