US PATENT SUBCLASS 405 / 289
.~.~.~ Inflatable

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

258  DF  EARTH TREATMENT OR CONTROL {5}
272  DF  .~ Shoring, bracing, or cave-in prevention {6}
288  DF  .~.~ Roof support {5}
289.~.~.~ Inflatable

DEFINITION

Classification: 405/289

Inflatable:

(under subclass 288) Method or apparatus wherein the roof support includes a pliant receptacle which is filled with a fluid under pressure.

SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force,

93, for inflatable jacks of general utility.