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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 G�bel
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 G�bel
https://en.wikipedia.org/wiki/Heinrich_G%C3%B6bel
Traffic light
https://en.wikipedia.org/wiki/Traffic_light
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