Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1800s 1890s 1900s 1880s 1800s 1890s 1900s 1880s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Marjorie Joyner Margaret Knight Amanda Jones Mary Kies Marjorie Joyner Margaret Knight Amanda Jones Mary Kies ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention caused many deaths while testing it? Ladders Dynamite Parachute Race cars Ladders Dynamite Parachute Race cars ANSWER DOWNLOAD EXAMIANS APP
Inventions Who came up with the idea for INSTANT MASHED POTATO? S. Tuberosum E. Asselbergs W. Raleigh K. Edwards S. Tuberosum E. Asselbergs W. Raleigh K. Edwards ANSWER DOWNLOAD EXAMIANS APP
Inventions What drink was invented by Charles Leiper Grigg in 1929? Yoo-Hoo 7-Up Hawaiian Punch Pepsi Yoo-Hoo 7-Up Hawaiian Punch Pepsi ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1940s 1970s 1950s 1960s 1940s 1970s 1950s 1960s ANSWER DOWNLOAD EXAMIANS APP
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