Fox, Harold G. <br/><br/>
The Canadian law and practice relating to letters patent for inventions / 
by Harold G. Fox 
 - 4th ed. 
 - Toronto :  Carswell,  1969 
 - 835 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>045930870X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--Canada