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经营范围
发明名称
Liquid filtering apparatus
摘要
申请公布号
US2198819(A)
申请公布日期
1940.04.30
申请号
US19370154379
申请日期
1937.07.19
申请人
HOLM ERNEST S
发明人
HOLM ERNEST S.
分类号
B01D21/26;B01D29/00;B01D35/02
主分类号
B01D21/26
代理机构
代理人
主权项
地址
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