Pocket Watch Database
Patent Archive
#197969
Patent Information
Clock Key
Burdette A. Lewis
Frederick L. Ellis
December 11, 1877
Patent #197969
| Patent Number: | 197969 |
| Description: | Clock Key |
| Inventor(s): |
Burdette A. Lewis Frederick L. Ellis |
| Patent Date: | Dec 11, 1877 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
