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What else can I help you with?
What is another name for eyeglasses?
bifocals?
What is a sentence using the word invention?
The telephone is a great invention in the history of communciation. The invention of radio allowed information to be rapidly sent between continents.
What did Benjamin franklyn invent?
The lightening rod, bifocals
What is necessity is the mother of invention?
It means our great grandpas to the millionth power "necessity" to eat, "mothered" the invention of hunting and cooking food, and so on and so forth
Who invented bifocals the lending library and an efficient heating stove?
Ben Franklin.
Is Benjamin Franklin's invention of the bifocals still being used today?
Yes, many people have bifocals.
What Chinese invention did Benjamin Franklin use?
Glasses ...He invented Bifocals .
Did George Washington invent the bifocals?
No, George Washington did not invent bifocals, but he is often credited with popularizing them. The invention of bifocals is attributed to Benjamin Franklin, who created them in the 18th century to address his own vision issues. Washington, however, was known to have used bifocals later in life, and he had a pair made for himself by an optician.
What was Benjamin Franklin's invention?
He invented the lightning rod, bifocals, the Franklin stove, a carriage odometer, and the glass 'armonica'.
What is a sentence with the word bifocals in it?
Please help me find my bifocals.
In what year were soft bifocal contact lenses invented?
Benjamin Franklin is generally credited with the invention of bifocals in 1784
What is a major invention from the 1700's?
The piano (1709). The lighting rod (1752). Steam road vehicles (1769). Steamboat (1776). Circular Saw (1777). Bifocals (1784).
Why are bifocals important?
because bifocals are still used today and without bifocals you would have to have 2 pairs of glasses that's why its Important
What are some changes of bifocals?
bifocals changed in size, shape, and magnification.
What are glasses that can focus at two different lengths called?
Bifocals.
What did benjamen invent?
* lightning rod * Franklin stove * odometer * bifocals* lightning rod * Franklin stove * odometer * bifocals* lightning rod * Franklin stove * odometer * bifocals* lightning rod * Franklin stove * odometer * bifocals* lightning rod * Franklin stove * odometer * bifocals* lightning rod * Franklin stove * odometer * bifocals
What is the bifocals patent number?
Bifocal lenses as a concept were not patented; there are dozens of patents related to bifocals, bifocal contacts, and processes to make bifocals.
