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The Wall Street Journal

wsj.com

did:plc:i3fhjvvkbmirhyu4aeihhrnv

In the 1880s, Granville T. Woods won patent battles to protect his inventions, including a system to allow moving trains to communicate wirelessly on.wsj.com/4tjcT9P https://on.wsj.com/4tjcT9P

2026-04-18T14:02:28.257Z