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The first escalators, which appeared in the late 1800s, were initially developed as amusement park rides!
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Electronics
On 24th March, 1959, The maser (forerunner to the laser) was patented... Read more »
On 21st February, 1961, Otis F. Boykin patented an electrical resistor... Read more »
On 25th April, 1961, Robert N. Noyce patented his Semiconductor Device-and-Lead Structure... Read more »
On 30th January, 2004, Shuji Nakamura won a settlement after his work with blue LEDs... Read more »
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