Pocket Watch Database
Patent Archive
#2000307
Patent Information
Clock Alternate Current
Osdel William J. Van
May 7, 1935
Patent #2000307
| Patent Number: | 2000307 |
| Description: | Clock Alternate Current |
| Inventor(s): | Osdel William J. Van |
| Patent Date: | May 7, 1935 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
