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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C22C1/10
Alloys containing non-metals
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C22C1/1005
Pretreatment of the non-metallic additives
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C22C1/1015
by preparing or treating a non-metallic additive preform
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C22C1/1021
the preform being ceramic
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