This is a division of application Ser. No. 112,898 filed on Jan. 17, 1980 now U.S. Pat. No. 4,298,692.
Entry |
---|
Schupp et al. J. Bacteriology vol. 121 No. 1 pp. 128-136. |
Helvetia Chimica Acta vol. 56, Fasc. 7 (1973) No. 239-240-2279. |
Number | Date | Country | |
---|---|---|---|
Parent | 112898 | Jan 1980 |