Commercial food patents, U.S. 1980 / Hallie B. North. Commer. food. pat. U.S. North, Hallie B. Food industry and trade Patents Abstracts Periodicals. TP370.5 .N67 641.027 NOC Vols. for 1970- published in Arlington, Va. by O.S. North. Description based on: 1979. SERBIB/SERLOC merged record Westport, Conn. : AVI, c1981 c1981 1981 Text Collection (viii), 257 p. : eng Commercial food patents, U.S. Commercial food patents, U.S.