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This work has been released into the public domain by its author, 平川研究所. This applies worldwide. In some countries this may not be legally possible; if so: 平川研究所 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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小型コヒーラ検波器。2008年11月18日 合資会社平川研究所よりＨＰ写真の転載許可。(This is a photograph of a small coherer wave detector of the practical use. I reprinted this photograph in wikipedia from the homepage of Hirakawa Institute on November 18, 2008 and got permission to show.)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:30, 13 December 2008 | | 205 × 203 (20 KB) | ENG0000 | ({{PD-author|平川研究所}} 2008年11月18日 合資会社平川研究所より提供。小型コヒーラ検波器。It was allowed to print this photograph in wikipedia from Hirakawa Institute on November 18, 2008 me. A small coherer wave detector. |
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