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inventer;Hans Lippershey
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inventer;Eli Whitney
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inventor;Thomas Savery
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inventor;Thomas Alvo Edision
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inventor;Walter Hunt
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inventor;Alfred Nobel
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inventor;Alexander Grayham Bell
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iventor;Willis Haviland Carrier
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inventor;Orville Wright
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inventor;Philo Farnsworth
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inventor;Clarece Birdeye
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inventor;Joesph Begun
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inventor;Robert Oppen
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inventor;Jonas Salk
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iventer; Ts`ai Lun