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helmeted hornbill
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Hermann von Helmholtz
Helmholtz (synonym of Hermann von Helmholtz)
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Name: Helmholtz
Type:
person
Dates: 1821 – 1894
Synonym of:
Hermann von Helmholtz
Appearing in designs:
Helmholtz
German Democratic Republic 7/10/1950 10pf dt=scientists (1950)
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Oskar Helmer
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