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Patent Archive
#1731538
Patent Information
Mech Control Transmission Signal
Fred L. Mackenzie
October 15, 1929
Patent #1731538
| Patent Number: | 1731538 |
| Description: | Mech Control Transmission Signal |
| Inventor(s): | Fred L. Mackenzie |
| Patent Date: | Oct 15, 1929 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
