US PATENT SUBCLASS 256 / 13
FLOOD
Current as of: June, 1999
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DEFINITION
Classification: 256/13
(under the class definition) Devices for use on shores or in stream beds designed to prevent animals from passing, but providing for the more or less free passage of the water and bodies held in suspension therein.
SEE OR SEARCH CLASS
49, Movable or Removable Closures,
10+, for closures which move under the influence of a swollen stream.
