Neither his ignorance nor his simplicity prevented him from taking out three patents: the first in 1865 for a sewing-machine Hemmer, and the last in 1882 for an improvement in incandescent lamps.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin
Watty, whan ye fess the bit boxie, jist pit a Hemmer an' a puckle nails i' your pooch to men' the hen hoose door.
"Malcolm"
George MacDonald