Pocket Watch Database
Patent Archive
#1251171
Patent Information
Clock Secondary
Lawrence O. Beard
December 25, 1917
Patent #1251171
| Patent Number: | 1251171 |
| Description: | Clock Secondary |
| Inventor(s): | Lawrence O. Beard |
| Patent Date: | Dec 25, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
