Sibley, J F <br/><br/>
Online patents trade marks and service marks databases 1992 

 - London:   ASLIB,   1991 
 - 70p. 
<br/><br/><label>ISBN: </label>0-85142-289-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patents trade marks
<br/><br/><label>Subjects--Index Terms: </label>User aids 
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3.022(088.83)  / N1