Ferdinand Redtenbacher (1809–1863), the Austrian founder of science-based mechanical engineering
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Ludwig Redtenbacher (1814–1876), an Austrian doctor and entomologist mainly interested in beetles
Josef Redtenbacher (March 13, 1810 – March 5, 1870) was an Austrian chemist born in Kirchdorf an der Krems, Upper Austria.
Ludwig Redtenbacher (June 10, 1814 in Kirchdorf an der Krems, Austria - February 8, 1876 in Vienna) was an Austrian doctor and entomologist mainly interested in beetles.