Inventions For what does the world owe Almon Strowger a debt of gratitude? Automatic Telephone Exchanges Parking Meters Traffic Lights Vending Machines Automatic Telephone Exchanges Parking Meters Traffic Lights Vending Machines ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the BALLPOINT PEN? Waterman Brothers Write Brothers Biro Brothers Bicc Brothers Waterman Brothers Write Brothers Biro Brothers Bicc Brothers ANSWER DOWNLOAD EXAMIANS APP
Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Marjorie Joyner Beulah Henry Bessie Blount Mae Jamison Marjorie Joyner Beulah Henry Bessie Blount Mae Jamison ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Edward Jenner Robert Koch Robert Hooke Louis Pasteur Edward Jenner Robert Koch Robert Hooke Louis Pasteur ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gramophone? Michael Faraday Sir Alexander Graham Bell Fahrenheit Thomas Alva Edison Michael Faraday Sir Alexander Graham Bell Fahrenheit Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1890s 1900s 1800s 1880s 1890s 1900s 1800s 1880s ANSWER DOWNLOAD EXAMIANS APP
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