The successful inventor's guide how to develop: protect and sell your invention profitably
Kessler, Kenneth O.
The successful inventor's guide how to develop: protect and sell your invention profitably Kessler, Kenneth O. - Englwood Cliffs Prentice-Hall 1965 - xv, 224 p.
Inventions
Patents - United States
608.773
The successful inventor's guide how to develop: protect and sell your invention profitably Kessler, Kenneth O. - Englwood Cliffs Prentice-Hall 1965 - xv, 224 p.
Inventions
Patents - United States
608.773