Card – picture – or sign exhibiting – Photographic transparency viewer – e.g. – x-ray viewer – Hand held slide viewer
Patent
1977-09-20
1978-10-31
Mancene, Louis G.
Card, picture, or sign exhibiting
Photographic transparency viewer, e.g., x-ray viewer
Hand held slide viewer
63 18, G09F 1130
Patent
active
041226194
ABSTRACT:
In a preferred embodiment, a locket portably suitable to be worn on a chain or cord around a person's neck, opens as a base and lid, of which the base supports the pivotally opening lid and also from within space thereof a microfilm support carrying removable, replaceable and disposable transparent plastic-encased microfilm viewable in magnification through a replaceable plastic magnifying glass wedge-mounted in the wall of the lid, the microfilm support being a short frame circumscribing a through space across which the microfilm is mounted, the microfilm transparent casing being stepped at its base and being mounted slidably into an insertion-slot space, and the frame being inexpensively a single structure formed into a hinge and mounting slot spring-biased outwardly to a viewing state and position from a compacted collapsed storage position down-position at which the lid is closed upon the base to form enclosure space storing the microfilm mounted on the microfilm support.
REFERENCES:
patent: 912329 (1909-02-01), Sterrick
patent: 2506509 (1950-05-01), Kratkowski
patent: 3178842 (1965-04-01), Zimmerman
patent: 3180042 (1965-04-01), Destal
Contreras Wenceslao J.
Herman Arnold
Mancene Louis G.
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