Pocket Watch Database
Patent Archive
#510754
Patent Information
Clock Gravity
Sigismund B. Wortmann
December 12, 1893
Patent #510754
| Patent Number: | 510754 |
| Description: | Clock Gravity |
| Inventor(s): | Sigismund B. Wortmann |
| Patent Date: | Dec 12, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
