Pocket Watch Database
Patent Archive
#256640
Patent Information
Watch Crystal Display Case
Norman Clark
April 18, 1882
Patent #256640
| Patent Number: | 256640 |
| Description: | Watch Crystal Display Case |
| Inventor(s): | Norman Clark |
| Patent Date: | Apr 18, 1882 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
