Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Rundbrenner für Mineralöle von verschiedenem Grade der Flüchtigkeit mit verstellbarem Zugglasträger und Zutritt der Verbrennungsluft, theils seitlich, theils von oben ins Innere der Brennerhülse
Clouds and smokes: The properties of disperse systems in gases and their practical applications. By William E. Gibbs, D. Sc. With a foreword by Sir Oliver Lodge. xiii–240 pages, illustrations, 8vo. Philadelphia, P. Blakiston's Son and Company, 1924