The registrar may call on any person who applies to be registered as proprietor of a registered trade mark for such proof or additional proof of title as he may require for his satisfaction.

TDR is a certificate registered in the holder's name or as a bearer security giving title to a number of shares in a non-Taiwan-based company deposited in a bank outside Taiwan.

Bosnian striker Dzeko, 23, hit 26 goals in 32 games in helping fire Wolfsburg to the Bundesliga title and Arsenal have registered their interest with his club.