Time machine/time puzzle

Details Time machine/time puzzle Time machine/time puzzle

1980-09-10

1983-01-11

Grieb, William H.

Education and demonstration

Telling time or calendar reading

G09B 1912

Patent

active

043680453

ABSTRACT:
An educational device to facilitate learning how to tell time. The device includes a base shaped like the face of a clock and a plurality of pieces representing various lengths of time which are received in a recessed portion of the base. Also included are minute and hour hands and a peg to hold the hands to the base.

REFERENCES:
patent: D193659 (1962-09-01), Matricardi
patent: 1276344 (1918-08-01), Gilman
patent: 2611193 (1952-09-01), Davis
patent: 2647330 (1953-08-01), Ford
patent: 2705843 (1955-04-01), Hawkins
patent: 2853804 (1958-09-01), Bengeyfield
patent: 3214848 (1965-11-01), Van Eycke
patent: 3238645 (1966-03-01), Wilson
patent: 4124945 (1977-02-01), Totten

Affiliated with

Also associated with

Rating

Time machine/time puzzle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time machine/time puzzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time machine/time puzzle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-777049