|  | C |
SECTION C — CHEMISTRY AND METALLURGY

|  | C |
Note(s) Definitions for Section C: Alkali metals: Li, Na, K, Rb, Cs, Fr Alkaline earth metals: Ca, Sr, Ba, Ra Lanthanides: elements with atomic numbers 57 to 71 inclusive Rare earths: Sc, Y, Lanthanides Actinides: elements with atomic numbers 89 to 103 inclusive Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W Halogens: F, Cl, Br, I, At Noble gases: He, Ne, Ar, Kr, Xe, Rn Platinum group: Os, Ir, Pt, Ru, Rh, Pd Noble metals: Ag, Au, Platinum group Light metals: alkali metals, alkaline earth metals, Be, Al, Mg Heavy metals: metals other than light metals Iron group: Fe, Co, Ni Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens Metals: elements other than non-metals Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

CHEMISTRY

|  | C14 |
SKINS; HIDES; PELTS; LEATHER

|  | C14B |
MECHANICAL TREATMENT AND PROCESSING OF SKINS, HIDES, AND LEATHER IN GENERAL; PELT- SHEARING MACHINES; INTESTINE-SPLITTING MACHINES (making leather substitutes Fulltext... Hierarchy... Expanded...B29J 1/04, Fulltext... Hierarchy... Expanded...D06N; making articles from leather Fulltext... Hierarchy... Expanded...B68F; mechanical cleaning of hides or the like Fulltext... Hierarchy... Expanded...D06G; artificial leather Fulltext... Hierarchy... Expanded...D06N)

|  | C14C |
CHEMICAL TREATMENT OF HIDES, SKINS AND LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING (dyeing and bleaching of leather or furs Fulltext... Hierarchy... Expanded...D06)