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Inventor: Manancero; Sergio O.
Address: Maple Grove, MN
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5297965 |
Mathematical and spatial toy apparatus |
March 29, 1994 |
| A mathematical and spatial toy apparatus is arranged to include a grooved rack board arranged to receive individual block components to teach children the mathematical cumulative effect of such boards to provide rudimentary teaching in mathematical and spatial relationships. |
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