Photographic film unit

Details Photographic film unit Photographic film unit

1981-02-23

1982-07-20

Stephan, Steven L.

Optics: motion pictures

Removable film strip magazine type

352 37, 353120, 360 2, 360135, G03B 2150

Patent

active

043402860

ABSTRACT:
A film unit comprises a hub and a film disk carried by the hub having photosensitive areas for receiving a plurality of images. The hub includes a region of dispersed magnetic particulates for recording data pertaining to the film unit. Since the hub supports the film disk, the data will remain oriented relative to the disk, and to specific images on the disk, during processing steps incident to the finishing of the film unit, e.g. during developing and printing.

REFERENCES:
patent: 3490844 (1970-01-01), Sapp
patent: 3572993 (1971-03-01), Rogers
patent: 3644032 (1972-02-01), Dimitracopoulos
patent: 3712723 (1973-01-01), Gerry
patent: 4043651 (1977-08-01), Livingston

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