Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Organo Corp
Original Assignee
Organo Corp
Japan Organo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Organo Corp, Japan Organo Co LtdfiledCriticalOrgano Corp
Priority to JP56046330ApriorityCriticalpatent/JPS57162622A/ja
Publication of JPS57162622ApublicationCriticalpatent/JPS57162622A/ja
Publication of JPH0255090B2publicationCriticalpatent/JPH0255090B2/ja
JP56046330A1981-03-311981-03-31Starting and stopping device of siphon-pipe for back washing in gravity-type filtering equipment
GrantedJPS57162622A
(en)