US PATENT SUBCLASS 104 / 266
.~.~ With rollers

Current as of: June, 1999
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104 /   HD   RAILWAYS

262  DF  CAR REPLACER {7}
265  DF  .~ Two-way {2}
266.~.~ With rollers

DEFINITION

Classification: 104/266

(under subclass 265) Car-replacing frog-blocks, having antifriction-rollers to facilitate the lateral shifting of the car-wheels.