Included in this photo gallery are the drawings and text from original patents. These are copies of the originals submitted by the inventor to the United States Patent and Trademark Office.
Images 1-8 of 8
- Graphic Index
- Text Index
African American Patent Holders - H to I
Illustrations from the original patents, photos of inventors and inventions
By Mary Bellis, About.com Guide
African American Patent Holders
Black History - Trivia & Books
Suggested Reading
African American Patent Holders - Photo Gallery
Top Related Searches united states patent and trademark office patent and trademark office joseph hawkins william hale drilling tool graphic index
- About.com
- Money
- Inventors
- African Americans
- Photo Gallery
- African American Inventors