US PATENT SUBCLASS 104 / 168
.~ Transverse live roll

Current as of: June, 1999
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104 /   HD   RAILWAYS

165  DF  TRACTION {8}
168.~ Transverse live roll

DEFINITION

Classification: 104/168

(under subclass 165) Car-propelling means in which the moving element in the road-bed consists of vertically or transversely extending live-rolls for engagement with car parts.