Raymond Keith Foster, Keith Mfg. Co., Inc. And Keith Sales Co. v. Hallco Manufacturing Co., Inc. And Olaf A. Hallstrom, Defendants/cross-Appellants. Raymond Keith Foster, Keith Mfg. Co., Inc. And Keith Sales Co., Plaintiffs/cross-Appellants v. Hallco Manufacturing Co., Inc. And Olaf A. Hallstrom, Raymond Keith Foster, Keith Mfg. Co., Inc. And Keith Sales Co. v. Hallco Manufacturing Co., Inc. And Olaf A. Hallstrom, Defendants/cross-AppellantsFiledJan 10, 1994