Pocket Watch Database
Patent Archive
#906366
Patent Information
Hair Spring Stud
W. C. Ball
L. N. Cobb
December 8, 1908
Patent #906366
Photo Credit: Jones & Horan
| Manufacturer: | Ball |
| Patent Number: | 906366 |
| Description: | Hair Spring Stud |
| Inventor(s): |
W. C. Ball L. N. Cobb |
| Patent Date: | Dec 8, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
