Patented April 21, 1874
If an object in your hands says PAT. APRIL 21, 1874, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 149,840 | IMPROVEMENT IN WRENCHES | William H. Crittendon | Grafton, Ohio |
The Antique Wrench Patent Archive
Every grip the nineteenth century took on a nut
If an object in your hands says PAT. APRIL 21, 1874, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 149,840 | IMPROVEMENT IN WRENCHES | William H. Crittendon | Grafton, Ohio |