Patent classifications
C
CHEMISTRY; METALLURGY
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C14
SKINS; HIDES; PELTS; LEATHER
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C14C
CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
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3/00
Tanning; Compositions for tanning
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C14C3/26
using other organic substances, containing halogen
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