Patentotheca

2/2 A radical design without back legs, it used a single bent tubular frame to create a flexible, floating seat. A milestone in modern furniture design.

22.10.2025 06:53 — 👍 2    🔁 0    💬 0    📌 0

Patentschrift Nr. 467 242 “Stuhl”.

1/2 #OnThisDay in 1928, architect Ludwig Miës van der Rohe received German #Patent No. 467 242 for a “Chair”, the iconic Freischwinger (cantilever chair).
#OTD #PatentHistory #DesignHistory #Bauhaus #MiesVanDerRohe

22.10.2025 06:53 — 👍 3    🔁 0    💬 1    📌 0

British Patent No. 5022 granted on 21 October 1824 to Joseph Aspdin for "An Improvement in the Modes of Producing an Artificial Stone". Page 1.

British Patent No. 5022 granted on 21 October 1824 to Joseph Aspdin for "An Improvement in the Modes of Producing an Artificial Stone". Page 2.

#OnThisDay in 1824, Joseph Aspdin received a British #patent for Portland cement, a material that quite literally shaped the modern world.
By burning limestone and clay, Aspdin created a powder that hardened like the fine stone of Portland, giving the invention its name.
#PatentHistory #OTD

21.10.2025 08:14 — 👍 3    🔁 0    💬 0    📌 0