Vaughan, Floyd L. <br/><br/>
The United states patent system 
by Floyd L. Vaughan 
 - Norman  University of Oklahoma   
 - xvi, 355p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation --United States
<br/><br/><label>Dewey Class. No.: </label>U24x73 V465