Pocket Watch Database
Patent Archive
#2501383
Patent Information
Drive Spring Fasten
Ferdinand Fengler
March 21, 1950
Patent #2501383
Patent Number: | 2501383 |
Description: | Drive Spring Fasten |
Inventor(s): | Ferdinand Fengler |
Assignee: | E Ingraham Co |
Patent Date: | Mar 21, 1950 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |