US PATENT SUBCLASS 405 / 120
.~.~.~.~ Elbow or tee

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}
118  DF  .~.~ Open channel {1}
119  DF  .~.~.~ Flume {2}
120.~.~.~.~ Elbow or tee

DEFINITION

Classification: 405/120

Elbow or tee:

(under subclass 119) Method or apparatus concerned with

either (a) proving a flume with a bent section therein, or (b) providing an opening in the wall of a flume section for communication with another intersecting flume section.