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Priority to JP2233972ApriorityCriticalpatent/JPS5325961B2/ja
Priority to US338478Aprioritypatent/US3874179A/en
Priority to GB1089773Aprioritypatent/GB1401141A/en
Priority to FR7308003Aprioritypatent/FR2178598A5/fr
Priority to DE19732311039prioritypatent/DE2311039A1/de
Priority to NL7303109Aprioritypatent/NL7303109A/xx
Publication of JPS4890013ApublicationCriticalpatent/JPS4890013A/ja
Publication of JPS5325961B2publicationCriticalpatent/JPS5325961B2/ja
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A20/00—Water conservation; Efficient water supply; Efficient water use