Pocket Watch Database
Patent Archive
#420519
Patent Information
Clock Calendar
Peter F. Nilson
February 4, 1890
Patent #420519
| Patent Number: | 420519 |
| Description: | Clock Calendar |
| Inventor(s): | Peter F. Nilson |
| Patent Date: | Feb 4, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
