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经营范围
发明名称
Water softener valve
摘要
申请公布号
US2110758(A)
申请公布日期
1938.03.08
申请号
US19330698829
申请日期
1933.11.20
申请人
DANIELS LEE G
发明人
DANIELS LEE 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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