US PATENT SUBCLASS 105 / 197.2
.~.~.~ Spring plankless

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

157.1  DF  TRUCKS {27}
182.1  DF  .~ Bogie {13}
197.05  DF  .~.~ Sprung bolster {7}
197.2.~.~.~ Spring plankless

DEFINITION

Classification: 105/197.2

(under subclass 197.05) Sprung bolster bogies where some provision between bolster and side frame connections is made to compensate for omission of the conventional spring plank.