US PATENT SUBCLASS 74 / 490.11
.~.~ Power and manual controlling elements


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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
479.01  DF  .~ Multiple controlling elements for single controlled element {8}
490.11.~.~ Power and manual controlling elements


DEFINITION

Classification: 74/490.11

Power and manual controlling elements:

(under subclass 479.01) Subject matter in which there is a combination of at least one power driven element and at least one manually operated element which together control the system's single output element. [figure]

(1) Note. In this subclass, and in coordinate and subordinate subclasses, the terms "manual" and "hand operated" also include using leg or foot power.

SEE OR SEARCH THIS CLASS, SUBCLASS:

625, for devices having alternate manual or power operators to control an output.