Tag Archives: Lifting-Jack

Invented In Davenport: Examples of Davenport ingenuity

Posted on May 19, 2023 by SCblogger

We came across this unusual ad from the Davenport Democrat and Leader from September 12, 1922. We researched and found a John Flanagan of Davenport, Iowa applied for a patent for his Lifting-Jack on June 9, 1919, with the application … Continue reading →

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