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发明名称
Water filter
摘要
申请公布号
US1811755(A)
申请公布日期
1931.06.23
申请号
US19300486839
申请日期
1930.10.06
申请人
JOHNSTON VIRGIL S
发明人
JOHNSTON VIRGIL S.
分类号
B01D35/02
主分类号
B01D35/02
代理机构
代理人
主权项
地址
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