Popular Patents: America’s First Inventions, from the Airplane to the Zipper 2nd edition
Reference Reviews ; 15 , 2 ; 40
01.02.2001
1 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Online Contents | 1997
Online Contents | 1997
Patents and inventions and how to handle them
Engineering Index Backfile | 1919
|Government and airplane manufacturers effect new patents agreement
Engineering Index Backfile | 1929