PD-69 · US 2,569,347
Circuit element utilizing semiconductive material
Original patent print · 1951
Shockley's junction transistor, 1951 — the refined design that made mass production possible.
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US 2,569,347Circuit element utilizing semiconductive material1951
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- Patented
Total29 €
PD-69 · US 2,569,347 · Filed June 26, 1948 ·
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Common questions
- Is this a real patent?
- Yes — the original drawing as filed at the U.S. Patent Office, cleaned and printed. Public domain by law.
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