Inventions of the Century William Henry Doolittle
-
- Geschiedenis
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
The author, William Henry Doolittle, was an Expert and Patent Solicitor, Ex-Examiner in the Patent Office and Assistant Commissioner of Patents at Washington, Writer of Inventions, etc. He put together this collection to illustrate a period of remarkable advances in technology across the board. -
-
INTRODUCTORY—INVENTIONS AND DISCOVERIES—THEIR DEVELOPMENT.
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
-
AGRICULTURE AND ITS IMPLEMENTS.
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
-
AGRICULTURAL IMPLEMENTS.
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
-
AGRICULTURAL INVENTIONS.
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
-
AGRICULTURAL INVENTIONS (continued).
http://www.adfreebooks.com - 1000+ audiobooks, all ad free!
-