|
US1712825A
|
|
Method and apparatus for condensing vapors
|
|
US1770213A
|
|
Automatic oil-pump regulator
|
|
US1591428A
|
|
Process and apparatus for treating hydrocarbon oils
|
|
US1718913A
|
|
Process for treating hydrocarbon oils
|
|
US1585381A
|
|
Apparatus for controlling the supply of steam and oil to an oil cracking still
|
|
US1527811A
|
|
Furnace
|
|
US1299172A
|
|
Process of treating mineral oils.
|
|
US1740691A
|
|
Apparatus and process of treating hydrocarbon oils
|
|
GB115014A
|
|
Improvements in or relating to the Art of Cracking Hydrocarbon Oils.
|
