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公开(公告)号：US1243737A
公开(公告)日：1917-10-23
申请号：US1912696178
申请日：1912-05-09
Applicant: AMERICAN WATER SOFTENER COMPANY , HODKINSON GEORGE F
Inventor： HODKINSON GEORGE F
CPC classification number: C02F1/686 , Y10T137/2539
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公开(公告)号：US1114763A
公开(公告)日：1914-10-27
申请号：US1912709679
申请日：1912-07-16
Applicant: AMERICAN WATER SOFTENER COMPANY
Inventor： HODKINSON GEORGE F
CPC classification number: B01D24/4684 , B01D24/24 , B01D2101/04 , B01D2201/087
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