Inventions What Thomas Davenport invented? Screw propellor Electric streetcar Chesterfield Sleeping (railway) car Screw propellor Electric streetcar Chesterfield Sleeping (railway) car ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Time-lock safe Pay telephone Automatic teller machine Burglar alarm Time-lock safe Pay telephone Automatic teller machine Burglar alarm ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Turnip Townsend Potato Peterson Swede Svenson Cabbage Carlson Turnip Townsend Potato Peterson Swede Svenson Cabbage Carlson ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Elijah McCoy Jan Ernst Matzeliger Ernest Just Lewis Latimer Elijah McCoy Jan Ernst Matzeliger Ernest Just Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1900s 1800s 1880s 1890s 1900s 1800s 1880s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1940s 1950s 1980s 1960s 1940s 1950s 1980s 1960s ANSWER DOWNLOAD EXAMIANS APP
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