US PATENT SUBCLASS 187 / 213
.~.~ Includes driven sustaining columns on opposite sides of support

Current as of: June, 1999
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187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

203  DF  STATIONARY LIFT FOR ROADWAY VEHICLE OR REQUIRED COMPONENT THEREOF {7}
210  DF  .~ Having specific drive means for support {4}
213.~.~ Includes driven sustaining columns on opposite sides of support {1}
214  DF  .~.~.~> Having threaded rider and mating screw

DEFINITION

Classification: 187/213

Includes driven sustaining columns on opposite sides of support:

(under subclass 210) Drive-means* including two distinct elongated structures positioned on different sides of a common vehicle-underlying support surface and directly across from each other which transmit elevating force to, and together hold up, the vehicle-underlying support surface.