How to be a successful inventor : turn your ideas into profit /
Griffin, Gordon D., 1930-
How to be a successful inventor : turn your ideas into profit / Gordon D. Griffin. - New York : John Wiley & Sons, 1991. - 236 p. : ill. ; 25 cm.
0471534447
90-025076
Inventions.
Patents.
How to be a successful inventor : turn your ideas into profit / Gordon D. Griffin. - New York : John Wiley & Sons, 1991. - 236 p. : ill. ; 25 cm.
0471534447
90-025076
Inventions.
Patents.
