File:Wave Transmitter US PAT 771917 1.jpg
Original file (496 × 750 pixels, file size: 361 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionWave Transmitter US PAT 771917 1.jpg |
English: Wave Transmitter US PAT 771917 |
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Date | ||||||||||||||||||||||||
Source | US PAT 771917 | |||||||||||||||||||||||
Author |
creator QS:P170,Q946570 |
Licensing
[edit]Public domainPublic domainfalsefalse |
The author died in 1928, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:35, 24 May 2006 | 496 × 750 (361 KB) | Roberto Landell de Moura (talk | contribs) | image:arquivo.jpg Radio Discovery and Development |
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Metadata
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Orientation | Normal |
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Horizontal resolution | 100 dpi |
Vertical resolution | 100 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 12:29, 24 May 2006 |
Color space | Uncalibrated |