US PATENT SUBCLASS 434 / 201
.~.~ Electric component included in teaching means

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

188  DF  MATHEMATICS {4}
191  DF  .~ Arithmetic {17}
201.~.~ Electric component included in teaching means

DEFINITION

Classification: 434/201

Electric component included in teaching means:

(under subclass 191) Subject matter including an electrical

part.