Message Transmission Optimization Mechanism | Ludwig Obry's gyroscopic mechanism for steering a Whitehead torpedo | health (game mechanism) | Generalized TTL security mechanism | Flintlock mechanism | Crank (mechanism) |
The Waffenfabrik von Dreyse was founded around 1841 to manufacture the famous Dreyse Needle gun for the Prussian Army, and they also made needle-pistols and caplock revolvers.