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Polaroid
https://en.wikipedia.org/wiki/Polaroid_Corporation...
Telegraph Key
Telegraph key is a general term for any switching device used primarily to send Morse code. Similar keys are used for all forms of manual telegraphy, such as in ‘wire’ or electrical telegraph and ‘wireless’ or radio telegraphy.
https://en.wikipedia.org/wiki/Telegraph_key
Radar
https://en.wikipedia.org/wiki/Radar
List of inventors
fact-index.com/l/li/list_of_inventors.h...
Fertilizer
https://en.wikipedia.org/wiki/Fertilizer
Plastic
https://en.wikipedia.org/wiki/Plastic
Aqua-Lung
https://en.wikipedia.org/wiki/Aqua-lung
Reginald Fessenden
https://en.wikipedia.org/wiki/Reginald_Fessenden
Robert Fulton
Robert Fulton (November 14, 1765 – February 24, 1815) was an American engineer and inventor who is widely credited with developing a commercially successful steamboat called Clermont.
https://en.wikipedia.org/wiki/Robert_Fulton
William Cullen
https://en.wikipedia.org/wiki/William_Cullen
Airship
https://en.wikipedia.org/wiki/Airship
Light bulb
https://en.wikipedia.org/wiki/Incandescent_light_b...
George Washington Carver
George Washington Carver was born into slavery
https://en.wikipedia.org/wiki/George_Washington_Ca...
Vacuum tube
https://en.wikipedia.org/wiki/Vacuum_tube
Heinrich Göbel
https://en.wikipedia.org/wiki/Heinrich_G%C3%B6bel
Traffic light
https://en.wikipedia.org/wiki/Traffic_light
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https://en.wikipedia.org/wiki/Polaroid_Corporation...
Telegraph Key
Telegraph key is a general term for any switching device used primarily to send Morse code. Similar keys are used for all forms of manual telegraphy, such as in ‘wire’ or electrical telegraph and ‘wireless’ or radio telegraphy.
https://en.wikipedia.org/wiki/Telegraph_key
Radar
https://en.wikipedia.org/wiki/Radar
List of inventors
fact-index.com/l/li/list_of_inventors.h...
Fertilizer
https://en.wikipedia.org/wiki/Fertilizer
Plastic
https://en.wikipedia.org/wiki/Plastic
Aqua-Lung
https://en.wikipedia.org/wiki/Aqua-lung
Reginald Fessenden
https://en.wikipedia.org/wiki/Reginald_Fessenden
Robert Fulton
Robert Fulton (November 14, 1765 – February 24, 1815) was an American engineer and inventor who is widely credited with developing a commercially successful steamboat called Clermont.
https://en.wikipedia.org/wiki/Robert_Fulton
William Cullen
https://en.wikipedia.org/wiki/William_Cullen
Airship
https://en.wikipedia.org/wiki/Airship
Light bulb
https://en.wikipedia.org/wiki/Incandescent_light_b...
George Washington Carver
George Washington Carver was born into slavery
https://en.wikipedia.org/wiki/George_Washington_Ca...
Vacuum tube
https://en.wikipedia.org/wiki/Vacuum_tube
Heinrich Göbel
https://en.wikipedia.org/wiki/Heinrich_G%C3%B6bel
Traffic light
https://en.wikipedia.org/wiki/Traffic_light
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