Want this question answered?
stuff
John Harrison, the English watchmaker
John Harrison invented the chronometer
He invented the Blueprint in 1840.
john kay invented the flying shuttle for weaving cloth in 1733.
John Harrison
he invented the first ever long case clock which is also known as the grandfather clock!..x
John Thermometer
John Harrison was born on March 24, 1693.
John Harrison was born on March 24, 1693.
John Harrison - rower - was born in 1924.
John Harrison Minnick was born in 1877.
John Harrison Minnick died in 1966.
John Harrison Burnett was born in 1922.
John Harrison - engraver - was born in 1872.
John Leonard Harrison was born in 1917.
John Leonard Harrison died in 1972.