Will it sell? how to determine if your invention is profitably marketable (before wasting money on a patent)

Библиографические подробности
Главный автор:	White, James E.
Формат:	‌
Язык:	English
Опубликовано:	Okemos, Mich. J.E. White & Associates 2000.
Предметы:	Inventions > Marketing. Patents. Patent laws and legislation > United States > Popular works. New products > Marketing.