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Benjamin Franklin in America is usually regarded as the inventor of the Bifocal glasses .
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How do you use bifocal in a sentence?
My gran has some bifocal glasses.
Which word starts with bi and means having 2 eyepieces?
Bifocal
Inventor of bifocal glasses?
Benjamin Franklin
Inventor of bifocol glasses?
The inventor of the bifocal glasses was Benjamin Franklin.
Did thomas Jefferson invent the bifocal glasses?
no
When was bifocal glasses created?
They were created in 1784.
When did benjamin franklin invent bifocal glasses?
1784
Where did Benjamin Franklin make his bifocal glasses?
in his bedroom
Can you change the bifocal prescription on glasses without changing the lens?
No, you cannot change the bifocal prescription on glasses without changing the lens. The lens is what is prescribed by your eye doctor. The frame, however, can be changed.
Who invented vulcanization of rubber and bifocal glasses?
Charles Goodyear is credited with the invention of vulcanization of rubber. Benjamin Franklin is credited with the invention of bifocal glasses.
Details about Benjamin franklins inventins?
One invention is bifocal glasses
When did Benjamin Franklin get a patent for Bifocal Glasses?
on January 17th, 1706
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