US PATENT SUBCLASS 33 / 23.03
.~.~ Superposed carriages

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

18.1  DF  SCRIBER {10}
23.01  DF  .~ Pantographic {12}
23.03.~.~ Superposed carriages

DEFINITION

Classification: 33/23.03

Superposed carriages:

(under subclass 23.01) Subject matter wherein the means for describing a line includes plural movable supports each movable on a different transverse direction in a different plane.