ES22767U - Intuitive addition and subtraction table in the form of a game (Machine-translation by Google Translate, not legally binding)
- Google Patents
Intuitive addition and subtraction table in the form of a game (Machine-translation by Google Translate, not legally binding)
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CORROTO GUTIERREZ SENEN
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CORROTO GUTIERREZ SENEN
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Publication of ES22767YpublicationCriticalpatent/ES22767Y/en
"INTUITIVE TABLE TO ADD AND REST IN THE FORM OF GAME" that consists of a cardboard on which another circular rotates. The first has drawn two circular crowns and the rotating, semicircles, each divided into circular trapezoids with drawings of series and numbers. (Machine-translation by Google Translate, not legally binding)
ES0022767U1950-04-031950-04-03
Intuitive addition and subtraction table in game form
ExpiredES22767Y
(en)
A device that can be disassembled into three pieces that form a single body, essentially arranged to obtain gifts through a specific combination of numbers and colors (Machine-translation by Google Translate, not legally binding)