Magnetic manipulatives book

Details Magnetic manipulatives book Magnetic manipulatives book

1997-04-30

1998-10-13

Hafer, Robert A.

Education and demonstration

Psychology

Behavior or performance display

434128, 434168, 434190, 434330, 434333, 434406, 434428, 434429, 273157R, 273239, 281 151, G09B 1900, G09B 300, B42D 100

Patent

active

058203834

ABSTRACT:
A book having at least one fold out page with a metal insert which assists the placement or arrangement of magnetic manipulatives onto a page of the book.

REFERENCES:
patent: 3496653 (1970-02-01), Wolfner et al.
patent: 4702700 (1987-10-01), Taylor
patent: 4832605 (1989-05-01), Bragin
patent: 4846689 (1989-07-01), Day
patent: 5029902 (1991-07-01), Komori
patent: 5636872 (1997-06-01), Gamer et al.

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