Older Than deck / Inventions and everyday things
Hand-cranked ice-cream maker
Patented
1843
Nancy Johnson’s freezer turned a paddle inside a tub of ice and salt.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify); scope and plausibility reviewed by Claude (AI build agent). Quotes are short passages from each source; for dates the quote is the year as printed, read in context.
“1843”United States Patent Office / Google Patents: source, retrieved 2026-10-21; quote re-found by the server check
“1843”German Patent and Trade Mark Office: source, retrieved 2026-10-21; quote re-found by the server check
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