US PATENT SUBCLASS 105 / 429
.~.~ With gate

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

425  DF  PLATFORMS {2}
426  DF  .~ Trapdoors {6}
429.~.~ With gate

DEFINITION

Classification: 105/429

(under subclass 426) Trap doors operatively connected with a gate or door closing the entry to the platform.