Pocket Watch Database
Patent Archive
#1931019
Patent Information
Clock System & Secondary Clock Synch
Samuel Harrison Jr Chamberlain
October 17, 1933
Patent #1931019
| Patent Number: | 1931019 |
| Description: | Clock System & Secondary Clock Synch |
| Inventor(s): | Samuel Harrison Jr Chamberlain |
| Assignee: | Ibm Corp |
| Patent Date: | Oct 17, 1933 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
