Leo Heikkinen
Leo Leonard Heikkinen (June 11, 1917 – September 10, 1999) was an Americans, American entrepreneur and millionaire who founded and owned numerous forestry production companies in Prentice, WI, including Prentice Hydraulics, Inc. (now a division of Caterpillar, Inc.) and Multitek North America, LLC. He is credited for inventing the "knuckleboom" hydraulic loader, an invention that propelled the Prentice loader to 51% of the worldwide market. Family Life and Education Heikkinen was born the third child in a family of ten in Brantwood, WI. He graduated from Tripoli High School in 1935, married his wife Norma in 1941, worked in Milwaukee, WI for the Koehring Company, and returned to Price County in 1945 where he made the town of Prentice his home. Heikkinen had four children with his wife Norma. He died in September 1999 at the age of 82. Prentice Hydraulics, Inc. In 1959, after running Heikkinen Machine Shop with his brothers for over a decade, Heikkinen incorporated Prentice H ...
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