Welsbach Light Company of Australasia (Limited) v Lochhead - (1904) 23 NZLR 628

Patent — Assignment — Evidence of — Register — Certified Copy of Deed of Assignment — "The Patents, Designs, and Trade-marks Act, 1889," Sections 42 and 111 — Infringement — Evidence of — Analysis — Sufficiency — Novelty — Incandescent Gas-burner — Proportions of Metals — Prior User of Mixture without Knowledge.