G - Physics – 09 – D
Patent
G - Physics
09
D
235/109, 40/7
G09D 3/00 (2006.01) G09D 3/04 (2006.01) G09D 3/06 (2006.01)
Patent
CA 1277834
Abstract The present invention deals with a variety of advanced perpetual calendars, combined calendars, multiple calendars, etc., using; a) yearly calendars comprising a minimum of two parts one mobile with respect to the other with one representing the weekdays and another representing the months of the year made in rectangular shape, in circular shape, in tubular shape, etc., b) monthly calendars comprising a minimum of two parts, one mobile with respect to the other with one repre- senting the weekdays and another representing the days of the month, c) weekly/daily agendas displaying the 7 days of the week with the sub-divisions of the days into hours, d) short moon calendars with accommodations for the variable months in it, e) combined calendars joining a Gregorian calendar together with a short moon calendar, f) multiple calendars comprising a board supporting two belts, showing a yearly calendar, a monthly calendar, and a weekly/daily agenda, using in addition numbered weekdays, bypassing the language barrier, displayed on mobile belts, rotated yearly and monthly to adjust the calendars, while the main board shows the twelve months of the year on the yearly calendar and the days of the month on the monthly calendar, g) multiple calendars using circular, yearly and monthly calendars provided with pulleys and belts or chains and counter weights resulting in a mechanised joint calendar accommodating as well, a weekly/daily agenda using, waterproof transparent covering to allow the surface to be marked with water soluble ink and wiped out without affecting the calendar board, with a variety of cursors to pinpoint the day and its date and with large displays of the day and its date using the One Letter Alphabet system, resulting in a variety of perpetual calendars, wall calendars, desk calendars, pocket calendars, practical to use and easy to produce.
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