Pocket Watch Database
Patent Archive
#3506897
Patent Information
Tuning Fork With Frequency Adjustment
Cecil Frank Clifford
April 14, 1970
Patent #3506897
| Patent Number: | 3506897 |
| Description: | Tuning Fork With Frequency Adjustment |
| Inventor(s): | Cecil Frank Clifford |
| Patent Date: | Apr 14, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
