Pocket Watch Database
Patent Archive
#989527
Patent Information
Timer Electric Circuit
Rudolph W. Lawson
Harry R. Snell
April 11, 1911
Patent #989527
| Patent Number: | 989527 |
| Description: | Timer Electric Circuit |
| Inventor(s): |
Rudolph W. Lawson Harry R. Snell |
| Assignee: | Thompson Fred W |
| Patent Date: | Apr 11, 1911 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
