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发明名称
Filter material
摘要
申请公布号
US5114894(A)
申请公布日期
1992.05.19
申请号
US19910656603
申请日期
1991.02.18
申请人
GRAIN PROCESSING CORPORATION
发明人
WITT, PAUL R.
分类号
B01J20/00;B01J20/22;B01J20/24;C12H1/04
主分类号
B01J20/00
代理机构
代理人
主权项
地址
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