Road-rail Battle Opens—that's News!

National Daily Press Discovers Disagreement Between Road and Rail. A Shock for Complacent A-licensees p'OR those others like myself who have been in the midst of the struggle......

An Improvement In Centrifugal Oil Purification

Latest Hopkinson Filter which Incorporates a Means for Removal of Impurities by Positive Water Washing F "purifying all forms of oil, including oil fuel, lubricating oil, and......