File:Tokuji Hayakawa Testing Crystal Radio.png
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Summary
[edit]DescriptionTokuji Hayakawa Testing Crystal Radio.png |
English: Tokuji Hayakawa (right) testing a crystal radio. |
Date | Photographed in 1925[1] |
Source | Sharp |
Author | Unknown author |
References
[edit]Licensing
[edit]Public domainPublic domainfalsefalse |
This photograph is in the public domain in Japan because its copyright has expired according to Article 23 of the 1899 Copyright Act of Japan (English translation) and Article 2 of Supplemental Provisions of Copyright Act of 1970. This is when the photograph meets one of the following conditions:
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:02, 4 July 2020 | 829 × 578 (519 KB) | FunnyMath (talk | contribs) | Uploaded a work by Unknown author from [https://global.sharp/100th/history/pdf/chapter02.pdf Sharp] with UploadWizard |
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Horizontal resolution | 28.35 dpc |
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Vertical resolution | 28.35 dpc |