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Summary

Description
English: Patent for Secret Communication System
Date
Source The Register
Author U.S. Patent Office

Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

Captions

Patent for a secret communication system by Hedy Lamarr.

Items portrayed in this file

depicts

inception

10 June 1941

File history

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Date/TimeThumbnailDimensionsUserComment
current09:49, 9 November 2015Thumbnail for version as of 09:49, 9 November 2015560 × 587 (124 KB)Light showUser created page with UploadWizard

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