Official gazette of the United States Patent and Trademark Office 

 - Washington D.C  U.S. Dept. of Commerce, U.S. Patent and Trademark Office, Information Products Division, 
<br/><br/> Paper version available from: U.S. Dept. of Commerce, U.S. Patent and Trademark Office, Information Products Division, Washington,DC 20231 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patents--United States.
<br/><br/><label>GPO Item No.: </label>0260-B-01 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>C 21.5/6-2: