US PATENT SUBCLASS 434 / 193
.~.~ Manually manipulated numeral shaped elements

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

188  DF  MATHEMATICS {4}
191  DF  .~ Arithmetic {17}
193.~.~ Manually manipulated numeral shaped elements

DEFINITION

Classification: 434/193

Manually manipulated numeral shaped elements:

(under subclass 191) Subject matter including pieces handled by hand and having the form of a symbol which represents a number.