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G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
G01N23/18—Investigating the presence of flaws defects or foreign matter
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Analysing Materials By The Use Of Radiation
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AT635776A1976-08-261976-08-26Verfahren zur ermittlung von fehlerstellen in feuerfesten steinen und vorrichtung zur durchfuehrung dieses verfahrens
AT354779B
(de)
Verfahren zum fraesen von innengewinden und verfahren zum fraesen von innengewinden und vorrichtung zur durchfuehrung dieses verfahrens vorrichtung zur durchfuehrung dieses verfahrens