US PATENT SUBCLASS 105 / 416
.~.~.~ Mono-center sill type

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

396  DF  CAR FRAMING AND STRUCTURE {5}
413  DF  .~ Underframes {1}
414  DF  .~.~ Metallic {5}
416.~.~.~ Mono-center sill type

DEFINITION

Classification: 105/416

(under subclass 414) Underframes in which the center sill is made from a single beam, which may be integral or two contacting beams riveted together.