It was very interesting, and I can add that the invention of the resuscitation mannequin was patented by the same Norwegian toymaker named in the story. In 1961 Asmund Laerdal filed for a British patent with a lengthy title beginning Improvements in training dolls (phantoms). Below is a drawing from it showing the mouth area, which incorporates a valve so that air from previous users is not taken in by a fresh user.
Laerdal took out a further 8 British patents on the subject and 9 American patents in the health area. These lists do overlap.
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