Pocket Watch Database
Patent Archive
#1545641
Patent Information
Clock Time For Talk Machine
Lawrence Dube
Joseph Palma Gratton
July 14, 1925
Patent #1545641
| Patent Number: | 1545641 |
| Description: | Clock Time For Talk Machine |
| Inventor(s): |
Lawrence Dube Joseph Palma Gratton |
| Patent Date: | Jul 14, 1925 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
