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发明名称
Zeolite water softener
摘要
申请公布号
US2000696(A)
申请公布日期
1935.05.07
申请号
US19320616186
申请日期
1932.06.09
申请人
FRIEND ROBERT O;MONTGOMERY JOHN A
发明人
FRIEND ROBERT O.;MONTGOMERY JOHN A.
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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