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What did Benjamin Franklin invent to improve his eyesight?
He invented bifocal glasses.
What are the things Benjamin Franklin invent?
Lightning rod, Franklin stove, and bifocal glasses.
What did Benjamin Franklin invent to help people see well?
bifocal glasses
Who invent the bifocal lens?
Benjamin Franklin did.
When did Benjamin Franklin invent electricity.and the stove that saved fuelor bifocal glasses and when did he die and were was he buried and what was his impotabs in the revolutinary war?
what year did Benjamine invent electricity 1706
Did Benjamin Franklin invent the ocular device?
No, Benjamin Franklin did not invent the ocular device. While Franklin did invent many things, such as the lightning rod and bifocal glasses, he did not invent the ocular device.
Did Benjamin Franklin invent glasses?
YES
When did Benjamin Franklin invent the armonica?
Benjamin Franklin invented the arrangement of the glasses in 1761.
Did the incas invent glasses?
no way. Benjamin Franklin did.
What did Benjamin Franklin invent other than a public library?
benjamin franklin invented spectacles,(glasses),and discovered electricity.
Did thomas Jefferson invent the bifocal glasses?
no
How did Benjamin Franklin invent glasses?
It's not easy to tell you when Franklin invented glasses, because they were well documented in Europe prior to 1300, i.e. 500 years before Franklin was born. Ben Franklin did invent a number of other things, including bi-focals.
