ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
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.:)
The Bifocals by Benjamin Franklin in 1784.
The bifocals he bought were used. The lower lenses on my bifocals allow me to read more easily.
bifocals were invented on the 300th block of Market street in Philadelphia
they were made out of metal
they were made out of metal
ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
1783 and was made until now
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.:)
The Bifocals by Benjamin Franklin in 1784.
He did the following Invented the lightning rod He made the first political cartoon He created bifocals He was the first US Post Master General Hope this helps
Please help me find my bifocals.
The bifocals he bought were used. The lower lenses on my bifocals allow me to read more easily.
Many things. He made the first public library, fire company, hospital, bifocals, lightning rod, odometer, fireplace, battery, and much more.
they were made in 1784 he didnt actuallly counstruct it a man in France or London did it for him
because bifocals are still used today and without bifocals you would have to have 2 pairs of glasses that's why its Important