Pocket Watch Database
Patent Archive
#170558
Patent Information
Time Lock
P. B. Hennessy
November 30, 1875
Patent #170558
| Patent Number: | 170558 |
| Description: | Time Lock |
| Inventor(s): | P. B. Hennessy |
| Patent Date: | Nov 30, 1875 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
