Mainly on patents : the use of industrial property and its literature / edited by F. Liebesny - London : Butterworths, c1972 - 210 p. : ill. ; 23 cm. - Information sources for research and development . Includes bibliographical references and index ISBN: 0408703687 : PND 5.00 Subjects--Topical Terms: Patents Dewey Class. No.: 608.7