Patent classifications
C
CHEMISTRY; METALLURGY
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C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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C22C
ALLOYS
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C22C1/05
Mixtures of metal powder with non-metallic powder
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C22C1/051
Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
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C22C1/053
with in situ formation of hard compounds
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