North, Hallie B. <br/><br/>
Commercial food patents, U.S. /  1969- 
Hallie B. North. 
 - Westport, Conn. :  AVI,  1969- 
 - vols. :  ill.  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Food industry and trade--Patents.