Pocket Watch Database
Patent Archive
#3136210
Patent Information
For Shadow Projection Of Clock Dial
Charles A. Barrett
June 9, 1964
Patent #3136210
| Patent Number: | 3136210 |
| Description: | For Shadow Projection Of Clock Dial |
| Inventor(s): | Charles A. Barrett |
| Patent Date: | Jun 9, 1964 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
