Patent classifications
C
CHEMISTRY; METALLURGY
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C10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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C10B
DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
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43/00
Preventing or removing incrustations
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C10B43/06
from conduits, valves or the like
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