Older Than deck / Inventions and everyday things
Home security camera system
Patented
1969
Marie Van Brittan Brown and Albert Brown’s system let people see who was at the door on a screen.
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.
“1969”Lemelson–MIT Program: source, retrieved 2026-10-27; quote re-found by the server check
“Patented Dec. 2, 1969”United States Patent Office — patent text published by Google Patents: source, retrieved 2026-10-27; quote re-found by the server check
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