Pocket Watch Database
Patent Archive
#190518
Patent Information
Clock Alarm
Rudolf Sayer
May 8, 1877
Patent #190518
| Patent Number: | 190518 |
| Description: | Clock Alarm |
| Inventor(s): | Rudolf Sayer |
| Patent Date: | May 8, 1877 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
