| ReturnTo Theme-Group-Choice | Onelevelup |
(Not Translated)
| 4G020 | Glass forming | |
| C03B7/00 -7/22;9/00-17/06;19/00-19/10@Z;21/00-21/06 | ||
| 4G020 | Glass forming | |
| C03B7/00 -7/22;9/00-17/06;19/00-19/10@Z;21/00-21/06 | ||