What Life Saving Device Was Patented In 1872 By Thomas J Martin?

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Difficulty
Hard

What Life Saving Device Was Patented In 1872 By Thomas J Martin?

Question:
What Life Saving Device Was Patented In 1872 By Thomas J Martin?
a)
Panic Bolt
b)
Fire Extinguisher
c)
Safety Harness
d)
Methane Gas Detector

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Correct Answer
Fire Extinguisher
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