US PATENT SUBCLASS 434 / 171
.~.~ Letter or word bearing elements (e.g., cards, blocks, etc.) with interfitting surface configurations
Current as of:
June, 1999
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434 /
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EDUCATION AND DEMONSTRATION
156
DF
LANGUAGE
{6}
167
DF
.~ Spelling, phonics, word recognition, or sentence formation {8}
171
.~.~ Letter or word bearing elements (e.g., cards, blocks, etc.) with interfitting surface configurations
DEFINITION
Classification: 434/171
Letter or word bearing elements (e.g.., cards, blocks, etc.) with interfitting surface configurations:
(under subclass 167) Subject matter including components having letters or words thereon and shaped so that surfaces thereof interfit.
(1) Note. Including are devices to ensure that the components must be properly arranged relative to each other to form a word or sentence.
