Scientific American, Vol. 63, No. 23 (December 1890)

1890 · 12 pictures

Patents · Koch · Brake · Feet · Device · Scientific American · Pipe · Steam engine · Railway switch · Piston travel · Air brake · Pipe leading · Twelve inches · Brake shoes · Homing pigeons · Outer ends

Internet Archive · Public domain (published before 1931) · More from this library