Pocket Watch Database
Patent Archive
#477284
Patent Information
Recorder Ship Time Course & Speed
John J. Townsend
June 21, 1892
Patent #477284
| Patent Number: | 477284 |
| Description: | Recorder Ship Time Course & Speed |
| Inventor(s): | John J. Townsend |
| Assignee: | Townsend Marine Invention Co |
| Patent Date: | Jun 21, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
