Schade H. Au. <br/><br/>
Patents at a glance 

 - Germany  Carl heymanns verlag kg. Germany      1964 
<br/><br/><label>Standard No.: </label>19,090 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z,2673, K4