Commercial food patents, U.S. /
North, Hallie B.
Commercial food patents, U.S. / 1969- Hallie B. North. - Westport, Conn. : AVI, 1969- - vols. : ill. 24cm
Food industry and trade--Patents.
Commercial food patents, U.S. / 1969- Hallie B. North. - Westport, Conn. : AVI, 1969- - vols. : ill. 24cm
Food industry and trade--Patents.