Card – picture – or sign exhibiting – Calendars
Patent
1975-06-04
1976-06-22
Mancene, Louis G.
Card, picture, or sign exhibiting
Calendars
G09D 300
Patent
active
039641961
ABSTRACT:
The disclosure relates to an activity schedule display device suitable for visually displaying work or activity schedules and relating them to the time of day.
REFERENCES:
patent: 384526 (1888-06-01), Isbell
patent: 1988782 (1935-01-01), Canepa
Mancene Louis G.
Wolff John H.
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