Pocket Watch Database
Patent Archive
#1022593
Patent Information
Device For Measure Time Interval
William H. Pratt
April 9, 1912
Patent #1022593
| Patent Number: | 1022593 |
| Description: | Device For Measure Time Interval |
| Inventor(s): | William H. Pratt |
| Assignee: | General Electric Co |
| Patent Date: | Apr 9, 1912 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
