Meinhardt, Peter <br/><br/>
Inventions patents and monopoly 

 - 2nd ed. 
 - London :  Stevens and sons,  1950. 
 - 320p. 
<br/><br/> include index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions patents
<br/><br/><label>Dewey Class. No.: </label>608  /  MEI/I