US PATENT SUBCLASS 434 / 231
.~.~ Practice keyboard having individually depressible keys

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

219  DF  OCCUPATION {8}
227  DF  .~ Keyboard operation (e.g., typing, key punching, etc.) {5}
231.~.~ Practice keyboard having individually depressible keys {1}
232  DF  .~.~.~> With means to display character upon depression of key

DEFINITION

Classification: 434/231

Practice keyboard having individually depressible keys:

(under subclass 227) Subject matter wherein the training is performed on a dummy keyboard having individual keys each of which can be depressed without affecting another key.