US PATENT SUBCLASS 137 / 277
.~.~.~ Vertically movable riser

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

272  DF  HYDRANT TYPE {15}
273  DF  .~ Water crane type {4}
275  DF  .~.~ Rotating riser {2}
277.~.~.~ Vertically movable riser

DEFINITION

Classification: 137/277

(under subclass 275) Apparatus in which the riser is movable vertically as well as rotatably.

SEE OR SEARCH THIS CLASS, SUBCLASS:

287+, for hydrants having vertically reciprocating risers which may also rotate.