Device for the determination of the time interval between an intravenous or arterial injection of a radiolabelled liquid, especially an X-ray contrast medium, and arrival at the site to be radiographed in the patient, and the liquid X-ray contrast medium itself
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Method for selecting an X-ray image suitable for diagnostic purposes
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Method for the transport and/or successive feeding of individual sheets of film or the like from a pile and a device for implementing the method
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Photographic method for calibrating medical X-rays and photographic dosimeter
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PROTECTIVE MASK FOR X-RAY ENGINEERING
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Method for archiving and processing medical X-ray photographs
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Microfilming device
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Photographic process for making an angiography.
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Producing high contrast copies from low contrast slides - using successive copies on high contrast film and with slide sandwiches for fine detail
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Photographic identification of objects by spectral signature - using transparencies of different spectral bands superimposed and viewed by transmitted light
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Series production of pseudo-relief photographs - using pairs of displaced copies photographed after alignment in simple jig
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Spectrally analysed polychrome X:ray images - are formed by several successive partial exposures using spectral filters
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PROCESS FOR PRODUCING CONTRAST CHANGED IMAGES BY PHOTOGRAPHIC MEANS
