Older Than deck / Inventions and everyday things
Zip fastener (Sundback)
Patented
1917
Gideon Sundback’s design used interlocking metal teeth and a slider.
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.
“1917”United States Patent Office / Google Patents: source, retrieved 2026-10-21; quote re-found by the server check
“1917”About.com / Mary Bellis (archived by The Inventors): source, retrieved 2026-10-21; quote re-found by the server check
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