US PATENT SUBCLASS 434 / 164
.~.~.~ Slotted or grooved path

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

156  DF  LANGUAGE {6}
162  DF  .~ Writing or printing by hand {3}
163  DF  .~.~ Tracing {1}
164.~.~.~ Slotted or grooved path

DEFINITION

Classification: 434/164

Slotted or grooved path:

(under subclass 163) Subject matter wherein the path is a slot or groove.