The Case Corporation was founded by Jerome Increase Case in 1847. Case started out by selling threshing machines. Case began manufacturing steam engines in 1869 and introduced its first steam traction engine in 1878. The company was quite successful with its steam tractor operations.
Case Heritage - JI Case Heritage Foundation
Case IH - official site
Case Skid-steer loaders - information on Case skid-steer loaders at DiggerData.com