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Bifocals are used for distance seeing or at close up seeing.
Wiki User
∙ 8y ago
Wiki User
∙ 14y agoso people could see better
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Where were bifocals invented?
bifocals were invented on the 300th block of Market street in Philadelphia
Where and when were the bifocals invented?
ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
Who invented bioforcal glasses?
Benjamin Franklin invented the bifocals
Did president George Washington invent bifocals?
George Constant Louis Washington, not the president of the United States, is fabled to have invented bifocals. However Benjamin Franklin invented bifocals on May 23, 1785.
Who invented the bifocals?
I've read that Benjamin Franklin invented them...
What state did ben invented the bifocals?
in Washington DC
Who invented the bifocals and the lighting rod?
Ben Franklin
What did Benjamin Franklin invent and what nationality was he?
he invented bifocals
How have bifocals changed since they were first invented?
The bifocals have changed alot since they were first invented. They have changed into different sizes, shapes and forms. They had also changed into sunglasses.:)
What year was the bifocals invented?
The bifocals were invented in 1784, by Benjamin Franklin, because he had seeing problems, and put two lenses of glass together to magnify his vision.
Who invented the bifocals eyeglasses?
Benjamin Franklin.
Who invented the lighting rod and bifocals other inventions?
Benjamin Franklin
