Pocket Watch Database
Patent Archive
#2511757
Patent Information
Crown Seal Device
Joseph Waldman
June 13, 1950
Patent #2511757
| Patent Number: | 2511757 |
| Description: | Crown Seal Device |
| Inventor(s): | Joseph Waldman |
| Patent Date: | Jun 13, 1950 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
