Bochnovic, John <br/><br/>
The Inventive step :  its evolution in Canada, the United Kingdom and the United States / 
Johb Bochnovic 
 - Weinheim :  Verlag Chemie,  1982 
 - 90 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>3527256997 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--Canada<br/>Inventions--United Kingdom<br/>Inventions--United States<br/>Patent law and legislation--Canada