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Priority to JP4083682UpriorityCriticalpatent/JPS58144350U/ja
Publication of JPS58144350UpublicationCriticalpatent/JPS58144350U/ja
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Publication of JPH0248838Y2publicationCriticalpatent/JPH0248838Y2/ja
Method of checking the presence or absence of an X-ray sheet film in a casette introduced into an apparatus for unloading or loading a sheet film into the cassette, and a device for carrying out the method