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typerwriter-Christopher Latham Sholes
thanks to the typewriter many important texts for history can be writted -
telephone-Alexander Graham Bell
It's one of the most important inventions because it helps to comunicate with the other persons -
the elevator-Ms. Tracy’s
very important for a big building -
mechanical dishwasher-Josephine Cochrane
it's not so important but it is very useful to save time when washing dishes -
the cinematographer-lumière brothers
one of the best inventions that helped start the cinema era -
the radio-Nikola Tesla
helped to improve communication -
the radioactivity- Marie Curie
one of the most significant discoveries in science -
the aspirin-Felix Hoffmann
is an important discovery in medicine -
windshield wipers-Mary Anderson
i's important to drive a car with bad weather -
coffee filters-Melitta Bentz
i’ts important to make coffee making easier