US PATENT SUBCLASS 104 / 165
TRACTION

Current as of: June, 1999
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104 /   HD   RAILWAYS

165TRACTION {8}
162  DF  .~> Pusher {1}
166  DF  .~> Longitudinal rotary shafts
167  DF  .~> Helical
168  DF  .~> Transverse live roll
169  DF  .~> Reciprocating farm tool
170  DF  .~> Truck distribution {1}
172.1  DF  .~> Chain {4}
173.1  DF  .~> Cable {22}

DEFINITION

Classification: 104/165

(under the class definition) Track and rolling stock in which the car-propelling means consists of a moving element or elements located along the trackway adapted to engage or be engaged by mechanism on the car for effecting movement thereof and not otherwise classified below.