He patented many of his inventions.
george westinghouse
psp
Thomas Crapper
He patented 80 inventions
To file a record that shows you own the invention.
1858 * Hamilton Smith patents the rotary washing machine. * Jean Lenoir invents an internal combustion engine.
Isaac Merritt Singer patented his inventions of the sewing machine in 1846 September 10th.
Ezra J. Warner was the inventor of the can opener. It was patented in 1858.
Excluded inventions are those that cannot be patented, such as laws of nature, natural phenomena, abstract ideas, and inventions that are considered immoral or offensive.
what are some there inventions in 1800s-1900s
The phonograph, for one (among his many patented inventions).