US PATENT SUBCLASS 74 / 551.5
.~.~.~.~.~.~ Simultaneously movable

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
*  DD  .~ Elements {8}
543  DF  .~.~ Handles {6}
551.1  DF  .~.~.~ Handle bars {4}
551.3  DF  .~.~.~.~ Folding or adjustable {2}
551.4  DF  .~.~.~.~.~ Sectional {1}
551.5.~.~.~.~.~.~ Simultaneously movable

DEFINITION

Classification: 74/551.5

(under subclass 551.4) Devices in which the sections are constrained to move simultaneously.