one of ben franklins is the bifocals because he didn't want to keep having two glasses around his neck and keep switching them
the wheeze hole
yes
wooden flippers
Glasses ...He invented Bifocals .
Benjamin Franklin invented the odometer. He used this device to survey roads for the US postal system.
Benjamin Franklin
he did a invention
yes ,benjamin franklin did finish his inventions [all of them ]
Potatoes
the wheeze hole
yes
a mp5 submachine gun
wooden flippers
the lightening rod
Charles Goodyear is credited with the invention of vulcanization of rubber. Benjamin Franklin is credited with the invention of bifocal glasses.
Glasses ...He invented Bifocals .
Benjamin Franklin invented the odometer. He used this device to survey roads for the US postal system.