Is this a real patent?

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

Printed in Europe on 200 g/m² matte paper. Small sizes ship flat, 50 × 70 ships rolled in a tube. Tracking by email.

What if it arrives damaged?

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

US 608,845Internal-combustion engine1898

PD-29 · US 608,845

Name: Internal-combustion engine Patent Print (1898)
Brand: PATENT DEPT.
SKU: PD-29
Availability: InStock

Rudolf Diesel's engine, 1898 — compression ignition, the workhorse of a century of freight.

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Total29 €

Shipping included (EU)

PD-29 · US 608,845 · Filed ·

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?: Printed in Europe on 200 g/m² matte paper. Small sizes ship flat, 50 × 70 ships rolled in a tube. Tracking by email.
What if it arrives damaged?: Send a photo within 7 days and we reprint and reship it free.