Secret communication system
| Image |  |
|---|---|
| Description | US patent from 1942 |
| Author/s |
author: Hedy Lamarr George Antheil |
| Publication date | August 11, 1942 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |