Pocket Watch Database
Patent Archive
#402823
Patent Information
Clock Electric
Emil G. Hammer
May 7, 1889
Patent #402823
| Patent Number: | 402823 |
| Description: | Clock Electric |
| Inventor(s): | Emil G. Hammer |
| Patent Date: | May 7, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
