(under the class definition) Method or apparatus pertaining to the preservation of shorelines or other areas subject to the erosive influence of water.
(1) Note. Lining of canals, channels, etc., is considered to be impermeablization and patents relating to the same will be found in appropriate subclasses under EARTH TREATMENT AND CONTROL.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73, for apparatus for or methods of creating or deepening a channel by concentrating a natural current.
263+, and 270, for subject matter relating to an impermeable lining for a canal, channel, etc.
