File:Magoichiro Watanabe, circa 1937.jpg

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DescriptionMagoichiro Watanabe, circa 1937.jpg	日本語: 数学者の渡辺孫一郎（1885–1955）。
Date	1 May 1937
Source	X・Y・Z (1937-05-01). "数学者のプロフヰル：渡辺孫一郎博士". 高数研究 1 (8). 考へ方研究社.
Author	Unknown authorUnknown author

	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: It was published before 1 January 1957. It was photographed before 1 January 1947. It is also in the public domain in the United States because its copyright in Japan expired by 1970 and was not restored by the Uruguay Round Agreements Act.
Notes	To uploader: Please provide the source and publication date. If the photograph was also published in the United States within 30 days after publication in Japan, it might be copyrighted. If the copyright has not expired in the U.S, this file will be deleted. See Commons:Hirtle chart. This template should not be used for a faithful photographic reproduction of an artwork. Under Article 23 of the former Copyright Act, its protection will be consistent with the artwork. See also Commons:When to use the PD-Art tag. العربية ∙ čeština ∙ Deutsch ∙ English ∙ español ∙ français ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ Bahasa Melayu ∙ português ∙ русский ∙ sicilianu ∙ Tiếng Việt ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

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current	03:37, 12 February 2023		1,137 × 1,657 (756 KB)	Uraniwa (talk \| contribs)	Uploaded a work by {{unknown\|author}} from {{Cite journal \|author=X・Y・Z \|title=数学者のプロフヰル：渡辺孫一郎博士 \|journal=高数研究 \|volume=1 \|issue=8 \|publisher=考へ方研究社 \|date=1937-05-01 \|page= }} with UploadWizard

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