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Although there was not a patent awarded specifically for screens to keep insects out many US paten… Read more When Were Window Screens Invented

Information sharing and file sharing was the birthplace of Electronic books. Answer 1 of 4. The … Read more When Were Electronic Books Invented

The first English corantos appeared in London in 1621. At the height of the industry in the late 1… Read more When Were Digital Newspaper Invented

Common soap bars were invented in the 19th century. This miracle of modern technology was created.… Read more When Were E-books Invented

This gives accurate readings and uses RATE technology. Although a flight surgeon Theodore Hannes B… Read more When Were Digital Thermometers Invented

Billboards From 1990s to Present With the advent of digital technology hand-painted boards were re… Read more When Were Digital Billboards Invented