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Patent Archive
#1161568
Patent Information
Apparatus Determine Period Of A Pendulum
Olin L. Wills
November 23, 1915
Patent #1161568
| Patent Number: | 1161568 |
| Description: | Apparatus Determine Period Of A Pendulum |
| Inventor(s): | Olin L. Wills |
| Patent Date: | Nov 23, 1915 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
