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July 16, 1990

CADTRAK FILE SUIT AGAINST WESTERN DIGITAL

By CBR Staff Writer

Cadtrak Corp, San Mateo, California has filed a suit against Western Digital Corp and its Western Digital Imaging subsidiary alleging infringement of patents on functions in raster graphics devices: Western Digital said that Cadtrak’s claim lacks merit because it holds a broad licence under the two Cadtrak patents covering both chips and circuit board products; it noted that in a lawsuit between Cadtrak and Commodore Business Machines, Commodore is asking the court to declare the patents invalid.

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