Pocket Watch Database
Patent Archive
#1836178
Patent Information
Revolution Counter
Friedrich Luthi
December 15, 1931
Patent #1836178
| Patent Number: | 1836178 |
| Description: | Revolution Counter |
| Inventor(s): | Friedrich Luthi |
| Assignee: | Hasler A G |
| Patent Date: | Dec 15, 1931 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
