Inventors and inventions
Subtitle: in three parts: I. The philosophy of invention ... II. The rights and wrongs of inventors ... III. Early inventors' inventories of secret inventions ...
By: By Henry Dircks ...
Publisher: E. and F.N. Spon
Published: 1867
Place of publication: London
Language: eng
Number of pages: 263
Subjects: Patents.; Inventions.; Industrial arts -- History.