Haddan, R. (1924). The inventor's adviser and manufacturer's handbook to patents, designs and trade marks: Being an instructional guide to the commercial development of inventions, their protection by patents at home and abroad, and the valuation and disposal of patent rights (12. ed.). Harrison.
Chicago-Zitierstil (17. Ausg.)Haddan, Reginald. The Inventor's Adviser and Manufacturer's Handbook to Patents, Designs and Trade Marks: Being an Instructional Guide to the Commercial Development of Inventions, Their Protection by Patents at Home and Abroad, and the Valuation and Disposal of Patent Rights. 12. ed. London: Harrison, 1924.
MLA-Zitierstil (9. Ausg.)Haddan, Reginald. The Inventor's Adviser and Manufacturer's Handbook to Patents, Designs and Trade Marks: Being an Instructional Guide to the Commercial Development of Inventions, Their Protection by Patents at Home and Abroad, and the Valuation and Disposal of Patent Rights. 12. ed. Harrison, 1924.