Pocket Watch Database
Patent Archive
#508473
Patent Information
Recorder Billiard
Charles B. Hopkins
November 14, 1893
Patent #508473
| Patent Number: | 508473 |
| Description: | Recorder Billiard |
| Inventor(s): | Charles B. Hopkins |
| Patent Date: | Nov 14, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
