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Eva8 [605]
3 years ago
12

What did the trained engineer and son of former slaves elijah mccoy invent to improve railroad efficiency?

History
1 answer:
DochEvi [55]3 years ago
3 0

a method to automatically lubricate gears

While working for a railroad McCoy invented a lubrication device to make railroad operation more efficient. McCoy trained as an engineer in Scotland as a teenager. He showed a strong interest in mechanics from a young age


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