By Mary Bellis
Jan Matzeliger - Mechanism for distributing tacks, nails, etc.
Jan Matzeliger - BiographyJan Matzeliger - Automatic method for lasting shoesJan Matzeliger - Lasting machine
Books on Black History - Compare PricesBlack History Trivia QuizColors of Innovation - Black History
What is a Patent?What Does the Term "Invented an Improvement" Mean?What is a Patent Drawing?
©2013 About.com. All rights reserved.