Johan Petter Johansson
Swedish inventor
Born on: December 12, 1853Died on: August 25, 1943
Aged: 89 years 256 days (1076 months)
Nationality: Sweden
Birth Sign: Sagittarius
Johan Petter Johansson, sometimes known as JP, was a Swedish inventor and industrialist. He invented a modern adjustable spanner. He obtained over 100 patents in total.
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