US PATENT SUBCLASS 405 / 99
.~.~.~ Swinging

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
80  DF  .~ Flow control {7}
87  DF  .~.~ Water gate or adjustable weir {7}
99.~.~.~ Swinging {1}
100  DF  .~.~.~.~> About horizontal axis {1}

DEFINITION

Classification: 405/99

Swinging:

(under subclass 87) Method or apparatus wherein the water gate turns about a pivot.