Pocket Watch Database
Patent Archive
#143618
Patent Information
Clock Calendar
Arnold Frankfeld
October 14, 1873
Patent #143618
| Patent Number: | 143618 |
| Description: | Clock Calendar |
| Inventor(s): | Arnold Frankfeld |
| Patent Date: | Oct 14, 1873 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
