Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts662. FISCHER, F. [Apparatus for Producing Hydrocarbons From Methane.] German Patent 583,851, Sept. 13, 1933; appl. F 71,554 filed Jan. 21, 1930 (Cl. 12 o-1.03). FIAT Reel AA90, frames 1,346-1,349; PB 70,275; Chem. Abs., vol. 28, 1934, p. 776. Addition to German Patent 578,311 (abs. 667). |