Pocket Watch Database
Patent Archive
#666760
Patent Information
Time Check For Door
John Koeber
January 29, 1901
Patent #666760
| Patent Number: | 666760 |
| Description: | Time Check For Door |
| Inventor(s): | John Koeber |
| Patent Date: | Jan 29, 1901 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
