Pocket Watch Database
Patent Archive
#2042049
Patent Information
Method Production Dial Scale Etc
Johannes Heidenhain
May 26, 1936
Patent #2042049
| Patent Number: | 2042049 |
| Description: | Method Production Dial Scale Etc |
| Inventor(s): | Johannes Heidenhain |
| Patent Date: | May 26, 1936 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
