US PATENT SUBCLASS 104 / 257
.~ Displaceable chock


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



104 /   HD   RAILWAYS

249  DF  CAR STOPS {7}
257.~ Displaceable chock


DEFINITION

Classification: 104/257

(under subclass 249) Car-stops comprising wheel-chocks

located along the trackway for engagement with car-wheels and designed to be seated on the rail or shifted therefrom at will.