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Priority to JP6162776ApriorityCriticalpatent/JPS52146032A/ja
Publication of JPS52146032ApublicationCriticalpatent/JPS52146032A/ja
Publication of JPS5528285B2publicationCriticalpatent/JPS5528285B2/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
Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
Cleaning Or Clearing Of The Surface Of Open Water
(AREA)
