Pocket Watch Database
Patent Archive
#877421
Patent Information
Time Glass
Iphus H. Jr Hall
January 21, 1908
Patent #877421
| Patent Number: | 877421 |
| Description: | Time Glass |
| Inventor(s): | Iphus H. Jr Hall |
| Assignee: | Telephone Tollmeter Co |
| Patent Date: | Jan 21, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
