2687. ------. [PIER, M., MÜLLER-CUNRADI, M., WIETZEL, G., AND WINKLER, K.] (Badische Anilin- u. Soda-Fabrik). [Oxygenated Organic Compounds.] Austrian Patent 116,054, no date. Chem. Zentralb. 1930, I, p. 3628.

See Canadian Patent 251,485 (abs. 2688).