US PATENT SUBCLASS 105 / 246
.~.~.~ Rising ridge

Current as of: June, 1999
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105 /   HD   RAILWAY ROLLING STOCK

238.1  DF  SPECIAL CAR BODIES {11}
239  DF  .~ Dumping {14}
244  DF  .~.~ Gondola drop bottom {2}
246.~.~.~ Rising ridge

DEFINITION

Classification: 105/246

(under subclass 245) Gondola cars in which the self-cleaning ridge rises in the act of dumping and falls again when the doors are closed.