Pocket Watch Database
Patent Archive
#2662397
Patent Information
Hardness Tester
David C. Goldberg
Robert E. Schafer
December 15, 1953
Patent #2662397
| Manufacturer: | Hamilton |
| Patent Number: | 2662397 |
| Description: | Hardness Tester |
| Inventor(s): |
David C. Goldberg Robert E. Schafer |
| Assignee: | Hamilton Watch Co |
| Patent Date: | Dec 15, 1953 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
