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发明名称
Automatic regeneration control apparatus for water softeners
摘要
申请公布号
US2539748(A)
申请公布日期
1951.01.30
申请号
US19450629978
申请日期
1945.11.21
申请人
MUELLER PAUL G
发明人
MUELLER PAUL G.
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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