Pocket Watch Database
Patent Archive
#1228820
Patent Information
Device For Regulate Balance Wheel
Wilson E. Porter
May 5, 1917
Patent #1228820
| Patent Number: | 1228820 |
| Description: | Device For Regulate Balance Wheel |
| Inventor(s): | Wilson E. Porter |
| Assignee: | New Haven Clock Co |
| Patent Date: | May 5, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
