|  | C |
SECTION C — CHEMISTRY AND METALLURGY

CHEMISTRY

|  | C04 |
CEMENTS; CERAMICS, etc.; SOUND OR THERMAL INSULATING MATERIALS

|  | C04 |
Note(s) This class does not include mechanical features provided for elsewhere, e.g. mechanical working Fulltext... Hierarchy... Expanded...B28, mechanical aspects of coating, e.g. applying glazes by brushing, dipping, spraying, Fulltext... Hierarchy... Expanded...B44, kilns Fulltext... Hierarchy... Expanded...F27.

|  | C04B |
LIME; CEMENTS; CERAMICS, STONE AND THE LIKE; SOUND OR THERMAL INSULATING MATERIALS