Educational time teaching device

Details Educational time teaching device Educational time teaching device

1980-11-10

1982-05-25

Grieb, William H.

Education and demonstration

Telling time or calendar reading

434110, G09B 1912

Patent

active

043314279

ABSTRACT:
An educational time teaching device especially useful for teaching children to tell time is disclosed. A base member has a plurality of coins mounted on it, the coins defining a minute scale from five to sixty in five minute intervals thereon, based upon the value of the coins. A dial member has an hour scale on it and can be detachably mounted in angularly aligned superposed relationship with the minute scale on the base member. An hour hand is provided and may be pivotably and detachably mounted on the base member alone or on the dial member when it is in angularly aligned superposed relationship with the base member.

REFERENCES:
patent: 1356929 (1920-10-01), Lewers
patent: 1688766 (1928-10-01), Vincent
patent: 2172450 (1939-09-01), Pitcher
patent: 2635357 (1953-04-01), Whitlock
patent: 3034229 (1962-05-01), Kessler
patent: 3131489 (1964-05-01), Alpert
patent: 3149423 (1964-09-01), Naples
patent: 3488864 (1970-01-01), McManus
patent: 3670428 (1972-06-01), Hall
patent: 3829989 (1974-08-01), Pecoraro

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