Pocket Watch Database
Patent Archive
#878615
Patent Information
Tremolo Meter
Charles P. Dolan
February 11, 1908
Patent #878615
| Patent Number: | 878615 |
| Description: | Tremolo Meter |
| Inventor(s): | Charles P. Dolan |
| Patent Date: | Feb 11, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
