Pocket Watch Database
Patent Archive
#443291
Patent Information
Clock Electro Mechanical Regulate
Carl Albert Mayrhofer
December 23, 1890
Patent #443291
| Patent Number: | 443291 |
| Description: | Clock Electro Mechanical Regulate |
| Inventor(s): | Carl Albert Mayrhofer |
| Assignee: | Electro-pneumatic Time Co |
| Patent Date: | Dec 23, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
