US PATENT SUBCLASS 33 / 24.3
.~.~.~ Coaxial styli

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

18.1  DF  SCRIBER {10}
23.01  DF  .~ Pantographic {12}
24.1  DF  .~.~ Multiplane {2}
24.3.~.~.~ Coaxial styli

DEFINITION

Classification: 33/24.3

Coaxial styli:

(under subclass 24.1) Subject matter wherein the tracing member and the scribing member have a common axis.