| 2625495 | High-temperature cleaning of ferrous metal | |||
| 2304474 | Heat treatment of textile fabrics | |||
| 2174170 | Manufacture of stiffening material | |||
| 2029985 | Method of bleaching | |||
| 1907429 | N/A | |||
| 1905900 | Process for vapor recovery | |||
| 1861624 | N/A | |||
| 0448888 | N/A | |||
| 0248479 | N/A | |||
| 0246547 | N/A |
| GB247997A |