The early to mid-1990s was a very difficult time for the industry due to patent litigation initially brought against The Lockformer Company, which at the time was a division of Met-Coil. In March 1991 ...
Lisle, Ill.— Illinois Attorney General Jim Ryan and DuPage County State’s Attorney Joseph Birkett have filed suit against sheet metal equipment manufacturer Lockformer Co., charging that the firm has ...
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