US PATENT SUBCLASS 33 / 25.3
.~.~.~ Universally parallel bar

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

18.1  DF  SCRIBER {10}
23.01  DF  .~ Pantographic {12}
25.1  DF  .~.~ Parallelogram type {4}
25.3.~.~.~ Universally parallel bar

DEFINITION

Classification: 33/25.3

Universally parallel bar:

(under subclass 25.1) Subject matter wherein a parallel bar of the linkage, the tracer member or the scribing member has movement in addition to the motion caused by the

parallelogram pentos:graphic linkage.