US PATENT SUBCLASS 49 / 229
.~.~.~ Oscillating track

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

208  DF  MOUNTED FOR MULTIDIRECTIONAL OR OBLIQUE MOVEMENT {7}
226  DF  .~ In plane of closure; e.g., oblique {4}
228  DF  .~.~ Gravitates on tilted track {2}
229.~.~.~ Oscillating track {1}
230  DF  .~.~.~.~> Sectional or nonlinear

DEFINITION

Classification: 49/229

(under subclass 228) Device wherein the track is pivoted to permit reversal of the direction of inclination, so that the closure may gravitate in opposite directions.

SEE OR SEARCH CLASS

104, Railways,

164, for a railway propulsion system utilizing a tilting track.