US PATENT SUBCLASS 33 / 23.07
.~.~ Pattern grading

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

18.1  DF  SCRIBER {10}
23.01  DF  .~ Pantographic {12}
23.07.~.~ Pattern grading

DEFINITION

Classification: 33/23.07

Pattern grading:

(under subclass 23.01) Subject matter wherein the scribing member produces a copy of an outline traced by the tracing member which is one of a group of copies which differ from each other not in configuration but the width of the outline.