Guide for the preparation of patent drawings. 

 - Washington, D.C.  U.S. Dept. of Commerce, Patent and Trademark Office  For sale by the Supt. of Docs., U.S. G.P.O.  [1993] 
 - 1 v. (various pagings)  ill.  28 cm. 
<br/><br/> "Selected rules of practice relating to patent drawings"--Cover.  "October 1993."  Shipping list no.: 93-0647-P.  003-004-00665-0 (GPO) 
<br/><br/><label>ISBN: </label>0160429528  15.00 
<br/><br/><label>LCCN: </label>94170444  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation--United States.<br/>Patents--Drawings.--United States
<br/><br/><label>LC Class. No.: </label>KF3120  / .A4 1993 
<br/><br/><label>Dewey Class. No.: </label>346.7304/86  347.306486 
<br/><br/><label>GPO Item No.: </label>0254-A 
<br/><br/><label>Gov. Doc. Class. No.: </label>C 21.14/2:D 79