Time teaching device

Details Time teaching device Time teaching device

1986-07-18

1988-03-15

Murtagh, John E.

Education and demonstration

Telling time or calendar reading

G09B 1912

Patent

active

047310251

ABSTRACT:
This invention deals with a teaching means for reading time by providing simulated analogue and digital clocks wherein said clocks function independently from each other.

REFERENCES:
patent: 3022582 (1962-02-01), Pitt
patent: 3203115 (1965-08-01), Friday
patent: 3364599 (1968-01-01), Polsky
patent: 3696531 (1972-10-01), Stewart
patent: 3735500 (1973-05-01), Matsumoto
patent: 4015346 (1977-04-01), Ogasawara
patent: 4102060 (1978-07-01), Berry

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