Pocket Watch Database
Patent Archive
#822029
Patent Information
Clock Valve Recorder
Guy P. Thurber
May 29, 1906
Patent #822029
| Patent Number: | 822029 |
| Description: | Clock Valve Recorder |
| Inventor(s): | Guy P. Thurber |
| Patent Date: | May 29, 1906 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
