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Game and teaching device construction

Education and demonstration – Mathematics – Arithmetic
Patent

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Game apparatuses and methods for use in teaching the...

Education and demonstration – Mathematics – Arithmetic
Reexamination Certificate

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Game apparatuses and methods for use in teaching the...

Education and demonstration – Mathematics – Arithmetic
Reexamination Certificate

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Games for enhancing mathematical understanding

Education and demonstration – Mathematics – Arithmetic
Patent

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Geometric building block system employing sixteen blocks, eight

Education and demonstration – Mathematics – Geometry – trigonometry – or physical mathematic model structure
Patent

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Geometric display device and method of demonstrating geometric s

Education and demonstration – Mathematics – Geometry – trigonometry – or physical mathematic model structure
Patent

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Geometric modeling kit and method of making same

Education and demonstration – Mathematics – Geometry – trigonometry – or physical mathematic model structure
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Geometric modeling kit and method of making same

Education and demonstration – Mathematics – Geometry – trigonometry – or physical mathematic model structure
Patent

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Geometry board

Education and demonstration – Mathematics – Geometry – trigonometry – or physical mathematic model structure
Patent

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