Nagel O <br/><br/>
Mechhanical appliances of the chemical and metallurgical industries 

 -  1909 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>58636 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Dewey Class. No.: </label>F191y8, J3