US PATENT SUBCLASS 434 / 161
.~.~ Letter displayed upon manipulation of mechanism

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

156  DF  LANGUAGE {6}
159  DF  .~ Alphabet letter formation, recognition, or sequencing {2}
161.~.~ Letter displayed upon manipulation of mechanism

DEFINITION

Classification: 434/161

Letter displayed upon manipulation of mechanism:

(under subclass 159) Subject matter wherein some mechanism, such as a key having an alphabet letter associated therewith is manipulated (e.g.., depressed) and as a result, a letter-bearing member is brought into viewable position.