10hon MSN
108 years later, Mahindra team rebuilds piston engine patented by Anand Mahindra's grandfather
Mahindra had revealed the story of his grandfather's patent in April this year, saying he had only recently learned about it while the group was organising its archives.
It would have been revolutionary: an internal combustion engine without oil. And it might have worked. But lots of real-world issues got in the way.
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