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1.发明授权Process for controlling stream and waterway pollution by treating sewage at the source and apparatus therefor 失效通过在源头处理污水和其设备来控制流域和水路污染的过程
公开(公告)号：US3458140A
公开(公告)日：1969-07-29
申请号：US3458140D
申请日：1966-07-25
Applicant: GEORGE W SCHRYVER
Inventor： SCHRYVER GEORGE W
CPC classification number: C02F1/30 , C02F2201/001 , C02F2201/008 , Y10S4/09
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