Card – picture – or sign exhibiting – Calendars – Charactered slide
Patent
1977-09-15
1980-02-12
Pitrelli, John F.
Card, picture, or sign exhibiting
Calendars
Charactered slide
40118, G09D 310
Patent
active
041876296
ABSTRACT:
A family of novel perpetual and multi-year calendars is obtained by various dispositions of four calendar data components, namely (1) calendar data comprising indications of the days of the month by number, (2) calendar data comprising indications of the days of the week by name, (3) calendar data comprising indications of the months of the year, and (4) indexing feature. The calendar data components are arranged in pairs on first and second display devices, one of which is movable relative to the other. The indexing feature in the perpetual calendar designs comprises a set of seven index positions and a movable index element locatable at any one of these positions. The indexing feature in multi-year calendar designs comprises a set of seven index positions labeled with calendar data including indications of the years by number. The disclosed family of calendars also includes species wherein the calendar data components consist of multiply listed calendar data on a first display surface and a set of other calendar data on a second display surface having a frame for, and being movable relative to, the first display surface.
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Wittnauer 2002 Watch-Perpetual Calendar Ad, Los Angeles Times Home Magazine, 12-1-1974.
Pitrelli John F.
Yamada-Graphics Corp.
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