Card – picture – or sign exhibiting – Calendars
Patent
1974-12-16
1976-06-29
Mancene, Louis G.
Card, picture, or sign exhibiting
Calendars
401061, G09F 1106
Patent
active
039655954
ABSTRACT:
A mounting or book for storing, displaying and handling transparencies having at least two sheet sets, each set containing at least one sheet which is pivotally mounted in the book in a manner so that any single sheet can be separately displayed or superimposed upon a single sheet of a further set. At least one carrier frame has a set of sheets hinged to it at one or both edges so that any sheet from a set can be pivoted toward the center of the carrier.
REFERENCES:
patent: 1076257 (1913-10-01), Wiltz
patent: 2138847 (1938-12-01), Felix
patent: 2314790 (1943-03-01), Jenter
patent: 3253358 (1966-05-01), Wright
patent: 3264767 (1966-08-01), Coffmann
patent: 3524703 (1970-08-01), Wright
Almqvist & Wiksell Forlag AB
Mancene Louis G.
Wolff John H.
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