Trade Marks [CAP. 401 Section 17. Prohibition of registration of identical and resembling trade marks 18. Registration in Part A to be conclusive as to validity after seven years 19. Registration subject to disclaimer 20. Words used as name or description of an article or substance 21. Effect of limitation as to colour and of absence thereof PART V PROCEDURE FOR, AND DURATION OF, REGISTRATION 22. Application for registration 23. Opposition to registration and appeals 24. Registration 25. Duration and renewal of registration 26. Registration of parts of trade marks and of trade marks as a series PARTVI ASSIGNMENT AND TRANSMISSION 27. Powers of, and restrictions on, assignment and transmission 28. Certain trade marks to be associated so as to be assignable and transmissible as a whole only 29. Power of registered proprietor to assign and give receipts 30. Registration of assignments and transmissions PART VII USE AND NON-USE 31. Removal from register and imposition of limitation 32. Defensive registration of well-known trade marks 33. Registered users 34. Proposed use of trade mark by corporation to be constituted, etc. 35. Use of one of associated or substantially identical trade marks equivalent to use of another 36. Use of trade mark for export trade 3