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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C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
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34/00
Obtaining refractory metals
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C22B34/10
Obtaining titanium, zirconium or hafnium
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C22B34/12
Obtaining titanium; or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
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C22B34/1295
Refining, melting, remelting, working up of titanium
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