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发明名称
Water softening system
摘要
申请公布号
US2299246(A)
申请公布日期
1942.10.20
申请号
US19380222721
申请日期
1938.08.02
申请人
HOAG MOORE LULU
发明人
MOORE LULU HOAG
分类号
C02F1/42
主分类号
C02F1/42
代理机构
代理人
主权项
地址
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