Inventions When were bar code scanners invented? 1940s 1950s 1970s 1960s 1940s 1950s 1970s 1960s ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Benjamin Franklin Marie Curie Albert Einstein Isaac Newton Benjamin Franklin Marie Curie Albert Einstein Isaac Newton ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Discover Visa MasterCharge Diner's Club Discover Visa MasterCharge Diner's Club ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1950s 1960s 1980s 1940s 1950s 1960s 1980s 1940s ANSWER DOWNLOAD EXAMIANS APP
Inventions For over 500 years, paper was only available and sold as single sheets. In 1902, an inventive Australian used half size sheets of paper, a bit of glue and cardboard to create the what? Notice Board Notepad Telephone Book Calendar Notice Board Notepad Telephone Book Calendar ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the game Frisbee invented? 1920s 1870s 1900s 1890s 1920s 1870s 1900s 1890s ANSWER DOWNLOAD EXAMIANS APP
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