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发明名称
Flow control system
摘要
申请公布号
US1971338(A)
申请公布日期
1934.08.28
申请号
US19300474991
申请日期
1930.08.13
申请人
NECKAR WATER SOFTENER CORPORATION
发明人
CONTANT PETER M.
分类号
C02F1/68
主分类号
C02F1/68
代理机构
代理人
主权项
地址
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