http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Index of patents issued from the United States Patent Office
GPO Cataloging Record Distribution Program (CRDP).
Volumes for 1966- issued in 2 pts: pt. 1, List of patentees; pt. 2, Index to subjects of invention.
Previous years found in: Annual report of the Commissioner of Patents.
Found also in: Annual report of the Commissioner of Patents, 1921-25.
Annual report of the Commissioner of Patents for the year
Index of patents issued from the United States Patent and Trademark Office