Pocket Watch Database
Philadelphia Watch Case Co.
Pocket Watch Patents
The following gallery contains patents that were issued or assigned to Philadelphia Watch Case Co. or individuals known to be associated with the company at the time. Not all designs were fully implemented into production.
Watch Pendant Mfg
| Patent Number: | 866194 |
| Description: | Watch Pendant Mfg |
| Inventor: | George A. Derfler |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Sep 17, 1907 |
| Registration Type: | Patent |
Watch Bow Mfg
| Patent Number: | 946082 |
| Description: | Watch Bow Mfg |
| Inventor: | Bernard Levy John Ullberg |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Jan 11, 1910 |
| Registration Type: | Patent |
Watch Movement
| Patent Number: | 946385 |
| Description: | Watch Movement |
| Inventor: | Walter B. Mehl |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Jan 11, 1910 |
| Registration Type: | Patent |
Watch Stem Wind & Set
| Patent Number: | 946906 |
| Description: | Watch Stem Wind & Set |
| Inventor: | William B. Ebelhare Walter B. Mehl |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Jan 18, 1910 |
| Registration Type: | Patent |
Watch Movement Click
| Patent Number: | 951106 |
| Description: | Watch Movement Click |
| Inventor: | William Henry Ebelhare |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Mar 8, 1910 |
| Registration Type: | Patent |
Cannon Pinion Shaft
| Patent Number: | 951139 |
| Description: | Cannon Pinion Shaft |
| Inventor: | Walter B. Mehl |
| Assignee: | Philadelphia Watch Case Co |
| Patent Date: | Mar 8, 1910 |
| Registration Type: | Patent |