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KDKA was the first radio station to ever get their license.
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Invented by Earle Dickson as a convinient dressing with adhesive tape.
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Invented by Ben P Ellerbeck as the first practicle retractable hardtop vehicle
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Invented by Garret Morgan after he saw two vehicles crash into each other.
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Invented by John Harwood as the first wrist watch a self widing mechanism.
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Invented by Samuel Shlafrack with self developing film.
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Invented by Chester Rice and Edward Kellogg
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Invented by John Logie Baird
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The first automatic commercial bread slicing machine, invented by an american inventor and engineer Otto Frederick Rohwedder
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Invented by Jacob Schick, was a convient way of shaving that did not require the use of water and shaving cream
