Educational accounting device

Details Educational accounting device Educational accounting device

1975-04-02

1977-02-22

Grieb, William H.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 1R, G09B 1918

Patent

active

040085279

ABSTRACT:
A plurality of transaction cards adapted for use with an educational accounting device are disclosed. Each card bears accounting indicia on its upper and lower portions. A pair of numeral-bearing disks are mounted adjacent to the upper and lower portions of the cards. The displayed numerals, together with the accounting indicia, represent part of an accounting entry.

REFERENCES:
patent: 678616 (1901-07-01), Gregory
patent: 1234743 (1917-07-01), Ellis
patent: 1333686 (1920-03-01), Spotswood
patent: 1415278 (1922-05-01), Tod
patent: 1587391 (1926-06-01), McKee
patent: 1611274 (1926-12-01), Larson
patent: 1751082 (1930-03-01), Grant
patent: 2134039 (1938-10-01), Gibbs
patent: 2702954 (1955-03-01), Cline et al.
patent: 3423847 (1969-01-01), Barbee
patent: 3739739 (1973-06-01), Brase
patent: 3889395 (1975-06-01), Zegel

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