Patents for Inventions, Fifty Years Subject Index 1861-1910: Classes 38-70 Great Britain. Patent Office Published: 1913 Total Pages: 1002 Get eBook
Official Gazette of the United States Patent and Trademark Office Published: 1989 Total Pages: 2038 Get eBook
Climatological Data for the United States by Sections United States. Weather Bureau Published: 1955 Total Pages: 670 Get eBook