Kōrero: Inventions, patents and trademarks

Ngā whakaahua, ngā rauemi katoa

Me pēnei te tohu i te whārangi:

Mark Derby, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/inventions-patents-and-trademarks/media (accessed 20 November 2019)

He kōrero nā Mark Derby, i tāngia i te 11 Mar 2010, updated 24 Feb 2015