Swedish Umbau

[David_Hayward (RIP)]

Similar GM subsidiaries produced converters, including GM Suisse in Biel/Bienne, and GM do Brazil, Sao Caetano, who produced a charcoal gas generator.

Anyhow, quoting from the wartime boom on GM overseas re GM Nordiska, Stockholm:

The plant continued to produce charcoal gas generators at a reduced volume, and there has now been added a line of wood gas generators.