Pocket Watch Database
Patent Archive
#998923
Patent Information
Clock Pneumatic
Pierre Poetto
July 25, 1911
Patent #998923
| Patent Number: | 998923 |
| Description: | Clock Pneumatic |
| Inventor(s): | Pierre Poetto |
| Patent Date: | Jul 25, 1911 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
