Pocket Watch Database
Patent Archive
#2091146
Patent Information
Clock Braille
John W. Hamilton
August 24, 1937
Patent #2091146
| Patent Number: | 2091146 |
| Description: | Clock Braille |
| Inventor(s): | John W. Hamilton |
| Patent Date: | Aug 24, 1937 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
