Dorr Felt

Dorr Eugene Felt (1862–1930) was an American inventor and industrialist who was known for having invented the Comptometer, an early computing device, and the Comptograph, the first printing adding machine. The Felt & Tarrant Manufacturing Company that he co-founded with Robert Tarrant on January 25, 1889 remained a major player in the calculator industry until the mid-1970s.

Personal facts

Dorr Felt
Birth dateMarch 18, 1862
Birth nameDorr Eugene Felt
Birth place
Newark Wisconsin , United States
Date of deathAugust 07, 1930
Place of death
Chicago , United States

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