Is this a real patent?

Yes — the original drawing as filed at the U.S. Patent Office, cleaned and printed. Public domain by law.

An unframed print on 200 g/m² matte paper, printed in Europe. Dispatched in 2–4 working days, followed by transit. Shipping is included to Spain, Portugal, France, Germany, Italy, Netherlands, Belgium, Austria and Ireland. Tracking by email.

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PD-72 · US 2,708,656

Neutronic reactor

Original patent print · 1955

Fermi and Szilard's nuclear reactor, filed in secret in 1944 and kept classified until 1955. The atomic age as a diagram.

200 g/m² matte paper · Unframed

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Neutronic reactor patent drawing, 1955, archive paper finish

US 2,708,656Neutronic reactor1955

Inventor: Enrico Fermi & Leó Szilárd
Patented: May 17, 1955

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PD-72 · US 2,708,656 · Filed December 19, 1944 ·

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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.
How is it shipped?: An unframed print on 200 g/m² matte paper, printed in Europe. Dispatched in 2–4 working days, followed by transit. Shipping is included to Spain, Portugal, France, Germany, Italy, Netherlands, Belgium, Austria and Ireland. Tracking by email.
What if it arrives damaged?: Send a photo within 7 days and we reprint and reship it free.

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Neutronic reactor

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Incandescent Electric Lamp

Electro-magnetic motor

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Common questions