Pocket Watch Database
Patent Archive
#1821066
Patent Information
Clock Digital Dial
Herman I. Marmorstein
September 1, 1931
Patent #1821066
| Patent Number: | 1821066 |
| Description: | Clock Digital Dial |
| Inventor(s): | Herman I. Marmorstein |
| Patent Date: | Sep 1, 1931 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
