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G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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G01N33/202—Constituents thereof
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FR515178A1919-10-221920-04-30Appareil pour déterminer la teneur en carbone de l'acier, des alliages ferreux et non ferreux et autres applications
ExpiredFR515178A
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