Which of the following was first patented by an Australian in 1889?

Electric Drill
Electric Shaver
Electric Fence
Electric Heater

Correct Answer: Electric Drill

Explanation:

The Electric Drill was the invention of Arthur James Arnot. On 20 August 1889 he patented his design while working for the Union Electric Company in Melbourne. His original design was meant primarily for drilling rock to find coal!

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