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Deutsch: Leo Graetz (* 26. September 1856 in Breslau; † 12. November 1941 in München) war ein deutscher Physiker.
English: Leo Graetz (September 26, 1856 - November 12, 1941) was a German physicist. He was born in Breslau (then in Germany, now called Wroclaw and in Poland) the son of the historian Heinrich Graetz.