Patentees' manual showing how to invent and the manner of securing the invention by letters patent in Canada and foreign countries
Edition: 3rd ed., greatly enl.
Publisher: Lovell
Published: 1870
Place of publication: Montreal
Language: eng
Number of pages: 59
Subjects: Patent laws and legislation; Patents
Notes: Containing also the patent, trade mark, design and copyright laws of the Dominion of Canada, with synopsis of patent laws of all countries, and cost of patents in each, by Charles Legge and company.