The encyclopedia of patent practice and invention management / 
 Patent practice and invention management 
edited by Robert Calvert 
 - Huntington, N.Y. :  Robert E. Krieger,  1964 
 - xix, 860 p. ;  26 cm. 
<br/><br/><label>ISBN: </label>0882751846 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation--United States