Multiple choice general knowledge math & puzzles Which of the following was first patented by an Australian in 1889? Electric Drill Electric Shaver Electric Fence Electric Heater Reveal answer Fill a bubble to check yourself A Correct answer Explanation Arthur James Arnot, an Australian engineer, patented the world's first electric drill in 1889. It was originally designed to drill rock and coal. Electric shavers and heaters were developed later in the 20th century.