Teaching aid

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation

Reexamination Certificate

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Details

C434S348000

Reexamination Certificate

active

07438555

ABSTRACT:
A hand held teaching aid is made of three layers of card. The grip has a panel projecting from the grip and a pocket slides on the panel. The grip carries a picture of an item whose name is to be taught, eg. an apple, and the panel bears the name of the item, eg. APPLE. When the grip and pocket are pushed together, the picture is visible but not the word. When the grip and pocket are slid apart, the word comes into view. In a variant, numerals and simple calculations replace pictures and words.

REFERENCES:
patent: 1538530 (1925-05-01), Troidl
patent: 1816760 (1931-07-01), Barnowitz
patent: 2503130 (1950-04-01), Poritz
patent: 3055118 (1962-09-01), Betancourt
patent: 3174231 (1965-03-01), Schure
patent: 3206872 (1965-09-01), Nason et al.
patent: 3387390 (1968-06-01), Chuy et al.
patent: 3874096 (1975-04-01), Romstad
patent: 4770638 (1988-09-01), Jabour et al.
patent: 5277587 (1994-01-01), Aiken et al.
patent: 5281146 (1994-01-01), Janney
patent: 5409381 (1995-04-01), Sundberg et al.
patent: 5797601 (1998-08-01), Ritchie
patent: 5951298 (1999-09-01), Werzberger
patent: 6053741 (2000-04-01), Wood
patent: 6652286 (2003-11-01), Larsen
patent: 2004/0197760 (2004-10-01), Rawlins et al.

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