The binding legal principles established are: (1) One registered trademark holder can sue another registered trademark holder for infringement, particularly where the registration is less than five years old and not yet conclusive under section 16 of the Trade Marks Act; (2) It is against public policy to allow monopolization of geographical indicators (such as "JIN" meaning "Zimbabwe") as exclusive trademark elements; (3) The test for likelihood of confusion or deception is whether an ordinary person of average intelligence and proper eyesight would be confused on first impression - courts should not peer too closely to find similarities and differences; (4) Rights granted by trademark registration are in respect of the mark as registered as a whole, not individual component parts; (5) Where marks share a common prefix but have distinctive suffixes and overall get-up (colors, imagery, symbols), they may be sufficiently distinctive to negate likelihood of confusion; (6) In passing off claims, the applicant bears the onus to prove goodwill with substantive evidence, not mere assertions; (7) For procedural purposes, citing an authorized licensee who is the actual user of an allegedly infringing mark is appropriate even without joining the registered proprietor, particularly where there is a close relationship (such as director/company) between them.