Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts719. FOHLEN, J. L. [Liquid Hydrocarbons by Synthesis.] French Patent 33,568, Apr. 27, 1927. Chem. Zentralb., 1929, I. p. 2468. Process of the main patent can also be applied to the production of alloys and in electrometallurgy, also, gases such as H2S, NH3, HCL can be injected. Addition to French Patent 631,927 (abs. 720). |