Pocket Watch Database
Patent Archive
#321893
Patent Information
Time Lock
Henry Gross
July 7, 1885
Patent #321893
| Patent Number: | 321893 |
| Description: | Time Lock |
| Inventor(s): | Henry Gross |
| Patent Date: | Jul 7, 1885 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
