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发明名称
Automatic water softener
摘要
申请公布号
US1938628(A)
申请公布日期
1933.12.12
申请号
US19310538697
申请日期
1931.05.20
申请人
HUPPERTZ GEORGE C
发明人
HUPPERTZ GEORGE C.
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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