Pocket Watch Database
Patent Archive
#1836957
Patent Information
Clock Synch Motor Electric Audible Signal
Elof L. Carlson
December 15, 1931
Patent #1836957
| Patent Number: | 1836957 |
| Description: | Clock Synch Motor Electric Audible Signal |
| Inventor(s): | Elof L. Carlson |
| Assignee: | E Ingraham Co |
| Patent Date: | Dec 15, 1931 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
