Engines & manuals
Pythagoras
Pythagoras in Norrtälje built hot-bulb engines from 1908 under the Fram and Drott brands, the latter for export. The engines powered farm machinery and fishing boats. The factory closed in 1979 and is now an industrial museum with a working machine shop.
- Norrtälje, 1898
- Discontinued 1979
- 3 models
Fram and Drott hot-bulb engines
Fram and Drott hot-bulb engines
Hot-bulb engines for boats and farming, 1908–1979.