Editing Gustaf Dalén (section)

===AGA cooker===
In 1922 he patented his invention of the [[AGA cooker]]. Most of the testing for the cooker was made in his private kitchen in his Villa Ekbacken that was built when AGA moved to Lidingö in 1912 but that he never actually had a chance to see with his own eyes{{clarify|date=January 2024|reason=What did Dalén never see?}}. His family helped him with the development work, checking temperatures, airflow etc., as the development work proceeded.