Pocket Watch Database
Patent Archive
#2757508
Patent Information
Instrument With Helicoidal Marks Reading Time
Renzo Zanetti
August 7, 1956
Patent #2757508
| Patent Number: | 2757508 |
| Description: | Instrument With Helicoidal Marks Reading Time |
| Inventor(s): | Renzo Zanetti |
| Patent Date: | Aug 7, 1956 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
