Older Than deck / Inventions and everyday things
Razor with replaceable blades
Patented
1904
King Camp Gillette’s razor used thin blades that were thrown away when blunt.
Sources and checks
Checked 2026-11-01: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify, or content-verify-pdf for PDFs); 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.
“Patented November 15, 1904”United States Patent Office — original patent text hosted by Google Patents: source, retrieved 2026-10-27; quote re-found by the server check
“Gillette won a patent for his blades in 1904.”Wisconsin Public Radio — original historical report: source, retrieved 2026-10-27; quote re-found by the server check
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