Patented December 20, 1870
If an object in your hands says PAT. DECEMBER 20, 1870, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 110,342 | IMPROVEMENT IN PENS | Richard H. Chinn | Washington, District of Columbia |
The Fountain Pen Patent Archive
The instruments that put ink under pressure
If an object in your hands says PAT. DECEMBER 20, 1870, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 110,342 | IMPROVEMENT IN PENS | Richard H. Chinn | Washington, District of Columbia |