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

 - London  Stevens    1950 
 - xvi, 320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Manufatures<br/>  Patents<br/>  Tradeworks
<br/><br/><label>Dewey Class. No.: </label>608  / M514i