People Sweden Karl Johan Laurens Leffler peoplepill id: karl-johan-laurens-lefflerKJLL 3 views today 3 views this weekSwedish metallurgistKarl Johan Laurens LefflerBiographyListsAlso ViewedListsKarl Johan Laurens Leffler is in following listsBy field of workNotable Swedish engineersGender:Male, Born in:Years 1800 to 1849By work and/or countryNotable Swedish MetallurgistsGender:Male, Born in:Years 1800 to 1849From our partnersSponsoredKarl Johan Laurens Leffler