currently preserved by the Smithsonian society. A protracted 440-day strike in Wisconsin of the Case factory weakened the company. For the next 31 years, the company went through more globalization, becoming a well-known company in the agricultural markets of Australia, Japan, and other places. Many other companies joined Case during this period. Modern mergers In 1957, Case bought out the American Tractor Corporation (ATC). ATC was founded in 1950 and was a producer of small crawler tractors. Their production of dozers (marketed as Terradozers) and development of an integrated backhoe was of particular interest to Case. Case dropped the ATC name in 1959 only retaining the Terratrac name for the drive trains. This led to a hybrid tractor being rolled out of the Burlington Plant in 1957. This model, the 320 Construction King, would become synonymous in the United States to the name backhoe loader. Since then Case has released other models such as the T-Series which includes the 580T, 580ST, 590ST and 695ST. In 1998, a jury awarded a construction worker over $17million in damages after a defect in the design of the 580 backhoe led to him being crushed and being paralyzed from the waist down while operating the machine. In 1961, Case Corporation signed a deal with RyCSA and Metalúrgica Tandil (in Buenos Aires), to make Case tractors and agricultural implements under licence in Argentina. The models built were the 830 and the 831, made until 1964 when RyCSA closed down. 1964 brought the acquisition of Colt Garden Tractors. This was the first garden tractor powered by 'Hy-Drive", a form of hydraulic propulsion that allowed for various heavy duty attachments and eliminated the need for transaxle drive belts. The Kern County Land Company, using oil money, bought the Case Company. In turn Kern County sold Case to Tenneco Company of Texas. In 1972, Case bought the British tractor builder David Brown Ltd. In 1974, Case acquired most of the French construction equipment firm, Poclain. In 1983, during purchase of International Harvester assets, Case sold its garden tractor division to Ingersoll Power Equipment. Ingersoll tractors would continue to carry the Case brand name until 1987. In 1984, Case parent Tenneco bought selected assets of the International Harvester agriculture division and merged it with J. I. Case. All agriculture products are first labeled Case International and later Case IH. They used the 94 Series Case Utility, two- and four