Pocket Watch Database
Patent Archive
#2063733
Patent Information
Spring Bar
Charles B. Greenberg
December 8, 1936
Patent #2063733
| Patent Number: | 2063733 |
| Description: | Spring Bar |
| Inventor(s): | Charles B. Greenberg |
| Patent Date: | Dec 8, 1936 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
