Invention and Engineering

Griswold Signal Company

The Griswold Signal Company was an American company focused on railway signalling, based in Minneapolis, Minnesota. Founded by Minnesota native Franklin Wolcott Griswold, the company manufactured traffic signals and railroad level crossing signals.

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See also

• ▸Climax locomotive
• ▸Allegory of Justice
• ▸Electric Loco Shed, Ghaziabad

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