Perpetual calendar

Details Perpetual calendar Perpetual calendar

G - Physics

09

C

40/8

G09C 3/06 (2006.01) G09D 3/00 (2006.01)

Patent

CA 1051661

Abstract A perpetual calendar operated by finger pressure wherein there is a base portion formed with horizontal grooves and including an overlay covering said base, the overlay has horizontal rows of etched transparent indicia. A plurality of slidable color plates are appropriately mounted in said grooves and when moved under said etched transparent indicia, visual registration of the specific transparent indicia is accomplished. The invention also includes color plate propelling means associated with the color plates extending exteriorly of said base and overlay for finger movement to slide the color plates into appropriate registry.

249259

Affiliated with

Also associated with

Rating

Perpetual calendar does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-164364