X-ray or gamma ray systems or devices – Photographic detector support – Dental
Patent
1992-02-10
1993-04-13
Hannaher, Constantine
X-ray or gamma ray systems or devices
Photographic detector support
Dental
378163, 378175, G03B 4202
Patent
active
052029115
ABSTRACT:
A radiographic film packet is adapted to be placed in a patient's mouth for exposing a sheet of dental film to x-rays generated by an x-ray tube. The packet comprises: a light-proof envelope having a first side and second side defining a pocket for receiving the film sheet; a sheet of lead disposed within the pocket adjacent the second side; a sheet of film disposed within the pocket between the lead sheet and the first side; an indicator affixed to the first side of the envelope, the indicator expressly designated the edge of the film packet appointed to be uppermost in the mouth during radiographic exposure; and a marker comprising a perforation in the periphery of the film sheet.
REFERENCES:
patent: 2103961 (1937-12-01), Wilmanns
Buff Ernest D.
Hannaher Constantine
Wong Don
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