 Pinomäki coined the term "harvester" to describe his Model 75 machine, which differs from a tree length processor in that a harvester grips, fells, de-limbs and sections the tree on site, while a processor simply de-limbs a tree that has been felled by chain saws and dragged to the delimbing equipment.His designs and innovations have been subsequently copied by at least five other major manufacturers of heavy timber equipment, including Timberjack, Valmet and Ponsse, and were instrumental in developing the "Scandinavian" system of timber harvesting, which is far more sustainable and nature conserving than the methods employed up till the mid-20th century.The two machine harvester-forwarder system consequently became the worldwide standard for sustainable forestry.