In what city did welding innovator C.L. Coffin live?
Answer Detroit, Michigan
In 1890, C.L. Coffin was awarded the first U.S. Patent for an ARC welder which utilized a metallic electrode. Mr. Coffin continued to innovate the welding industry throughout the rest of his life, improving processes and safety measures.
Asked by Jennifer Sinclair · Last updated 5 years ago · 136.1K views · SOURCE
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