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Top 100 Famous Female Inventors in History & Modern Women Inventors
which helped Einstein formulate his general theory of relativity. 32. Erna Schneider Hoover (1926-present) Before Erna Schneider Hoover invented the telephone call traffic, the phone circuit equipment at
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Top 101 Female Inventions that Changed the World & Women’s Innovation History
underwater; it was also resistant to corrosion and heat. 14. Call Center System The world can thank Erna Schneider Hoover for giving some sense of sanity to the complex telephone switching system used during the
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