Pocket Watch Database
Patent Archive
#487433
Patent Information
Time Stamp
Charles Stahlberg
December 6, 1892
Patent #487433
| Patent Number: | 487433 |
| Description: | Time Stamp |
| Inventor(s): | Charles Stahlberg |
| Assignee: | Accurate Time Stamp Co |
| Patent Date: | Dec 6, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
