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.

What if it arrives damaged?

Send a photo within 7 days and we reprint and reship it free.

PD-18 · US 381,968

Electro-magnetic motor

Original patent print · 1888

Tesla's electro-magnetic motor, 1888 — the rotating magnetic field, foundation of the AC world we live in.

200 g/m² matte paper · Unframed

29 € · Shipping included · Choose size ↓

Electro-magnetic motor patent drawing, 1888, archive paper finish

US 381,968Electro-magnetic motor1888

Inventor: Nikola Tesla
Patented: May 1, 1888

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PD-18 · US 381,968 · Filed October 12, 1887 ·

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Full collection

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.

Read the full FAQ

Electro-magnetic motor

Pairs well with

Incandescent Electric Lamp

Apparatus for transmitting electrical energy

Vacuum-tube

Common questions