Perpetual calendar

Details Perpetual calendar Perpetual calendar

1986-11-03

1988-12-27

Mancene, Gene

Card, picture, or sign exhibiting

Calendars

Card pockets

40107, G09D 302

Patent

active

047930802

ABSTRACT:
A perpetual calendar that has a flat frame with two cavities. When cards are arranged in each cavity of the frame it will display a specific month. To display a particular number of days in a month, select the proper 31 day card and arrange the vertical slits on the card with the horizontal slit on the frame to obtain 28, 29, 30 or 31 days. To display a particular month choose the name of the month card to be viewed and insert it in the position of the frame provided for it. The few cards that are not used will remain in the frame cavities behind the month being displayed.
This perpetual calendar can also display three consecutive months at one time.

REFERENCES:
patent: 424356 (1890-03-01), Romaine
patent: 1299029 (1919-04-01), Reed
patent: 3142920 (1964-08-01), Nelson et al.

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