PLAYING CARD
PROBLEM TO BE SOLVED: To provide a playing card capable of enriching knowledge of chemical elements, through a game.SOLUTION: A playing card is formed of suits of club, diamond, heart, and spade, in which, an electron configuration figure 11 of a chemical element is provided on a center of a face, a...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
16.05.2016
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Subjects | |
Online Access | Get full text |
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