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-48 · US 1,707,570

Loud-speaker

Original patent print · 1929

Rice and Kellogg's moving-coil loudspeaker — the 1929 design still inside almost every speaker made.

200 g/m² matte paper · Unframed

29 € · Shipping included · Choose size ↓

Loud-speaker patent drawing, 1929, archive paper finish

US 1,707,570Loud-speaker1929

Inventor: Chester W. Rice
Patented: April 2, 1929

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Size

Total29 €

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Shipping to Spain, Portugal, France, Germany, Italy, Netherlands, Belgium, Austria and Ireland. Delivery time includes transit after dispatch.

PD-48 · US 1,707,570 · Filed April 20, 1925 ·

Pairs well with

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

Loud-speaker

Pairs well with

Phonograph or Speaking Machine

Gramophone

Electrical stringed musical instrument

Common questions