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C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
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FR736628D1931-05-081932-05-04
Improvements to processes and apparatus for metal refining
ExpiredFR736628A
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