X-ray or gamma ray systems or devices – Photographic detector support – Sheet film cassette
Patent
1990-07-31
1993-06-01
Gregory, Bernarr E.
X-ray or gamma ray systems or devices
Photographic detector support
Sheet film cassette
378185, G03B 4204
Patent
active
H00012017
ABSTRACT:
In an X-ray apparatus which photographs a radiogram on a film in a cassette, a local film portion in a peripheral of the film has a local film contour that is distinct from other portions of the film, and a local cassette portion in a peripheral of the cassette has a local cassette contour that is distinct from other portions of the cassette. When the film is set in the cassette, the local film portion is superimposed on the local cassette portion.
REFERENCES:
patent: 2103961 (1937-12-01), Wilmanns
patent: 3846635 (1974-11-01), Shaffer
Gregory Bernarr E.
Konica Corporation
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