US PATENT SUBCLASS 280 / 247
.~.~.~.~.~ Linkage and crank

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}
242.1  DF  .~.~.~ Hand propelled {4}
244  DF  .~.~.~.~ Oscillating lever {3}
247.~.~.~.~.~ Linkage and crank {1}
248  DF  .~.~.~.~.~.~> With gearing

DEFINITION

Classification: 280/247

(under subclass 244) Vehicles in which the lever is connected to a crank by a link or linkage system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

256, for foot operated mechanisms.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclass indented under

25, for mechanical movements of this type.