|
US1550557A
|
|
Method of calcining alkaline-earth carbonates
|
|
US1550558A
|
|
Process for making combustible gas
|
|
US1545155A
|
|
Flame furnace
|
|
GB235924A
|
|
Process of working up phosphates and other reducible compounds
|
|
US1535026A
|
|
Process for the production of zinc in reverberatory furnaces
|
|
GB208764A
|
|
Process for the production of zinc in reverberatory furnaces
|
|
US1545154A
|
|
Process for the operation of reverberatory furnaces
|
|
GB196658A
|
|
Process and furnaces for carrying out chemical reactions and physical processes at high temperatures
|
|
GB172027A
|
|
Process for the formation of cyanic compounds
|
|
GB142122A
|
|
Improved manufacture of cyanogen compounds
|
|
GB142110A
|
|
Improvements in or relating to valveless pumps for molten materials
|
|
US833472A
|
|
Process of obtaining metals and compounds thereof.
|
