The Antique Wrench Patent Archive

Every grip the nineteenth century took on a nut

Patented September 11, 1877

If an object in your hands says PAT. SEPTEMBER 11, 1877, it may be one of these.

PatentTitleInventorOf
US 195,173IMPROVEMENT IN MONKEY-WRENCHESAlbert A. Sanborn and Charles BurroughsNewark, New Jersey

All dates