Education and demonstration – Telling time or calendar reading
Patent
1999-02-18
2000-02-29
Nguyen, Kien T.
Education and demonstration
Telling time or calendar reading
434159, 434170, 434172, 446 75, 446139, 368 45, G09B 1912
Patent
active
060302283
ABSTRACT:
An educational system is provided including a recipient surface such as a cloth or base having a plurality of entities positioned thereon which are selected from the group of entities including colors, shapes, alphabetic characters, and numbers. Also included are marbles and figurines for being removably positioned adjacent to the entities.
REFERENCES:
patent: 4262431 (1981-04-01), Darnell
patent: 4846689 (1989-07-01), Day
patent: 5167507 (1992-12-01), Cobb et al.
patent: 5346399 (1994-09-01), Sakow
Miller Bena B.
Nguyen Kien T.
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