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Ice cream freezer
Lady Edison's first patent was for the ice cream freezer.
Her first patented invention was a vacuum ice freezer in 1912.
Nancy Johnson invented the first hand cranked ice cream freezer in 1843. Nancy sold the patent to William Young. He marketed the machine as the Johnson Patent Ice Cream Freezer.
Lady Edison's first patent was for the ice cream freezer.
1880
Thomas Edison received his first patent, U.S. Patent 90,646, on June 1, 1869. This patent was for the electric vote recorder.
Samuel Prosser received a patent related to toilets in England in 1777.
Rembrandt Peale
Adolf Rickernbacker got the first patent in 1932 after George Beauchamp invented the first electrically amplified guitar in 1931.
first put the ice cream in heat and let it melt then put it in the freezer.
Alexander Graham Bell