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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C22C33/0207
Using a mixture of prealloyed powders or a master alloy
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C22C33/0228
comprising other non-metallic compounds or more than 5% of graphite
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