Pocket Watch Database
Patent Archive
#3537253
Patent Information
Timer
Melvin Friedman
November 3, 1970
Patent #3537253
| Patent Number: | 3537253 |
| Description: | Timer |
| Inventor(s): | Melvin Friedman |
| Assignee: | Polaroid Corp |
| Patent Date: | Nov 3, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
