US PATENT SUBCLASS 280 / 251
.~.~.~ Strap, drum, and ratchet

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
200  DF  .~ Occupant propelled type {8}
210  DF  .~.~ With propulsion means {15}
251.~.~.~ Strap, drum, and ratchet

DEFINITION

Classification: 280/251

(under subclass 210) Vehicles in which the propelling means includes a strap, rope or other flexible member adapted to be wound and unwound on a ratcheted or overrunning drum.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243, for similar hand propulsion means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

136+, and 138+ for mechanical movements of this type.