Pocket Watch Database
Patent Archive
#76858
Patent Information
Clock Collet Die
H. C. Thompson
April 21, 1868
Patent #76858
| Patent Number: | 76858 |
| Description: | Clock Collet Die |
| Inventor(s): | H. C. Thompson |
| Patent Date: | Apr 21, 1868 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
