US PATENT SUBCLASS 434 / 181
.~.~.~.~ Apertured mask moved past reading matter carrier

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

156  DF  LANGUAGE {6}
167  DF  .~ Spelling, phonics, word recognition, or sentence formation {8}
178  DF  .~.~ Reading {2}
179  DF  .~.~.~ Speed {4}
181.~.~.~.~ Apertured mask moved past reading matter carrier

DEFINITION

Classification: 434/181

Apertured mask moved past reading matter carrier:

(under subclass 179) Subject matter wherein a member having a viewing opening therein passes between reading matter and a viewer, the latter attempting to read the matter during the time it is exposed through the viewing opening.