Drying and gas or vapor contact with solids
Patent class list (only not empty are listed)
Deeper subclasses:
Class / Patent application number | Description | Number of patent applications / Date published |
---|---|---|
034523000 | APPARATUS | 1136 |
034282000 | PROCESS | 994 |
034245000 | MATERIAL TREATED BY ELECTROMAGNETIC ENERGY | 152 |
034279000 | MATERIAL TREATED BY ACOUSTIC ENERGY | 11 |