|
GB654133A
|
|
The agglomeration of finely divided materials
|
|
GB647685A
|
|
Improvements in or relating to gas filters
|
|
GB630122A
|
|
Improvements relating to processes for the reduction of metallic oxides or metal oxide ores
|
|
GB630089A
|
|
Improvements relating to the preparation of powdered metallic oxides into nodules
|
|
GB543957A
|
|
Improvements in and relating to filters
|
|
CA310831A
|
|
Checkerwork
|
|
CA310830A
|
|
Checkerbrick
|
|
CA417355A
|
|
Steel production
|
|
CA289017A
|
|
Gas cleaning apparatus
|
|
CA381847A
|
|
Iron ore smelting method
|
|
CA407793A
|
|
Molten iron desulphurization
|
|
CA496782A
|
|
Treatment of metallic oxides
|
|
CA432999A
|
|
Filter
|
|
CA310829A
|
|
Checkerbrick
|
|
CA300943A
|
|
Hot blast stove
|
|
CA420629A
|
|
Rotary filter
|
|
CA312771A
|
|
Blast furnace gas cleaning apparatus
|
|
CA391339A
|
|
Iron ore smelting process
|
|
CA407665A
|
|
Sulphur reduction
|
|
CA319042A
|
|
Gas washer
|
