Pocket Watch Database
Patent Archive
#1312946
Patent Information
Clock Electric
John A. Butkus
Gustav Blumberg
August 12, 1919
Patent #1312946
| Patent Number: | 1312946 |
| Description: | Clock Electric |
| Inventor(s): |
John A. Butkus Gustav Blumberg |
| Patent Date: | Aug 12, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
