Pocket Watch Database
Patent Archive
#279239
Patent Information
Clock Electric Movement
Heinrich Grau
June 12, 1883
Patent #279239
| Patent Number: | 279239 |
| Description: | Clock Electric Movement |
| Inventor(s): | Heinrich Grau |
| Patent Date: | Jun 12, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
