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Summary

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Hans Hermann Hupfeld, German Physicist. Personal archive of his daughter, Gherda Hupfeld.

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current03:22, 29 January 2007Thumbnail for version as of 03:22, 29 January 2007272 × 400 (56 KB)Gaeta~enwiki (talk | contribs)Hans Hermann Hupfeld, German Physicist. Personnal archive of her daughter, Gherda Hupfeld. Circa 1930.

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