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Apparatus for testing and regulating the flow of powdered material
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Method and device for determining the distance and / or the inclination of a reflection surface to a reference plane
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Improvements in material analysis
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Method of and means for surface measurement
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Improvements in Spectrographs
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Improvements in Optical Profile Projection Systems
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Improvements in or relating to Electron Emission Control.
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Method of and Means for Surface Measurement.
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Improvements in activation analysis
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Improvements in or relating to the Measurement of Particles
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Improvements to devices generating electric shocks
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Improvements in or relating to material testing
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Improvements relating to analysis cell window assemblies
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Improvements in apparatus for carrying out spectroscopic analysis
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Method and device for carrying out radiometric analyzes on powdery material
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Improvements in or relating to electrical discharge systems
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Radiometric analysis of powdered sample material
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