Tag: David Shields

The Griswold “Burglar Alarm”

The Griswold “Burglar Alarm”

Griswold made much more than just a line of cookware. Did you know that Griswold also made, and held the patent for, a burglar Alarm? I didn’t think so. Inventors John Harvey and David Shields, assigned to Matthew Griswold. Application March 1, 1893. Patent granted […]


Send this to a friend