Combination system and question and answer matching game
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United States of America Patent
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Jul 2, 1985
Grant Date -
N/A
app pub date -
Jan 13, 1984
filing date -
Jan 13, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A combination system such as may, for example, be embodied in a matching game or instructional device or in a set of locks and keys consists of a number of receivers and an associated number of plugs with both the receivers and the plugs having cooperable coding features coded according to unique rules, derivable from N-dimensional geometry, assuring a desired form of cooperation between a plug inserted in a receiver only when the code of such plug matches the code of the receiver.
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