Tuska, Clarence D. <br/><br/>
An introduction to patents :  for inventors and engineers / 
by Clarence D. Tuska. 
 - New York :  Dover Publications,  c1964. 
 - xii, 192 p. : ill. 
<br/><br/><label>LCCN: </label>64-18372 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation.<br/>Inventions--Patents.<br/>Engineering--Patents.