Pocket Watch Database
Patent Archive
#487550
Patent Information
Watch Balance Non Magnetic
Charles F. Carpenter
December 6, 1892
Patent #487550
| Patent Number: | 487550 |
| Description: | Watch Balance Non Magnetic |
| Inventor(s): | Charles F. Carpenter |
| Patent Date: | Dec 6, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
