Pocket Watch Database
Patent Archive
#564072
Patent Information
Clock Lapsed Time
James M. Helfenstein
William K. Holmes
July 14, 1896
Patent #564072
| Patent Number: | 564072 |
| Description: | Clock Lapsed Time |
| Inventor(s): |
James M. Helfenstein William K. Holmes |
| Patent Date: | Jul 14, 1896 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
