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Inventor of bifocal glases?
Benjamin Franklin.
How have bifocal eyeglasses changed our lives?
hihih9
What are some inventions in 1700-1730?
Ben Franklin was a very famous inventor through the 1700-1730's. He created bifocal glasses and fireplaces. He also made many more inventions. His inventions were most popular in the Middle Colonies, Pennsylvania. Bifocal glasses cost about 20 pounds and fireplaces were about 30-32. These were invented in about 1730.
What three inventions by Benjamin Franklin that are still used today?
the bifocal spectacles, lower compartments on ships keeping water out, and the odometer are used today.
List four new inventions designs or ideas of the 1780s.?
1780: Bifocal glasses were invented by Benjamin Franklin 1783: invention of the hot air balloon 1784: the safety lock is invented by Joseph Bramah 1785: invention of a parachute by Blanchard
Which word starts with bi and means having 2 eyepieces?
Bifocal
Which is better science general or science bifocal?
science bifocal
How do you use bifocal in a sentence?
My gran has some bifocal glasses.
What are facts about bifocal glasses?
they were made in 1784 he didnt actuallly counstruct it a man in France or London did it for him
Inventor of bifocal glasses?
Benjamin Franklin
Where was the bifocal glasses born?
Benjamin Franklin in America is usually regarded as the inventor of the Bifocal glasses .
Which are better bifocal contact lenses or monovision contacts?
Bifocal contacts lenses are a better option..:)
What is the defernition for bifocal?
Bifocal is a type of corrective lens. Bifocal lenses are divided into two sections, usually the top for seeing far away objects and the bottom for seeing nearby objects.
What does add hi low med mean in contact lenses?
It means you are using a bifocal contact lens that has a bifocal power of about +1.25 to +1.50. A high add would have the bifocal power of about +2.50.
What rhymes with reciprocal?
Bifocal
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.
What actors and actresses appeared in The Bifocal Gaze - 2007?
The cast of The Bifocal Gaze - 2007 includes: Kunga Dorje as Popola Tashi Sherpa
