Blocks assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10957219
APP PUB NO 20190172369A1
SERIAL NO

15830985

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Importance

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Abstract

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A blocks assembly is provided. The assembly is formed of a base with an arch attached thereto. A number of blocks are slideably attached to the arch and confined by the base. The blocks can be slid from one side of the arch to the other. Markings on each side of the arch indicate how many blocks are on each side of the arch. Addition, subtraction, and general mathematical principles and relationships can be taught by movement and manipulation of the blocks.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
VLIET JOHNFAIRHAVEN MA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Vliet, John Fairhaven, US 2 0

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