Made in Rockford: J. L. Clark products

With the current interest in the sale of J. L. Clark by CLARCOR to CC industries, an affiliate of Chicago-based Henry Crown and Co., here’s some information about their products over time. In 1900, John Lewis Clark had a hardware store, and patented an improved flue stopper, the Gem Flue Stopper. He spent $70 for equipment–$45 for dies and $25 for a secondhand foot-powered punch press. Because he was dissatisfied with the current lithography available at the time, the company began to do its own. After punching out the flue...

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