| IPC 7 English version |
| Class C03 |
|
|
|
| SECTION C – CHEMISTRY; METALLURGY |
|
| C 03 | GLASS; MINERAL OR SLAG WOOL |
|
| C 03 B | MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES |
|
| C 03 C | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS |
|
 |
