Pocket Watch Database
Patent Archive
#1322770
Patent Information
Logarithmic Instrument
William Eastwood
November 25, 1919
Patent #1322770
| Patent Number: | 1322770 |
| Description: | Logarithmic Instrument |
| Inventor(s): | William Eastwood |
| Patent Date: | Nov 25, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
