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United States Utility Patents
6,252,670 - 6,252,679

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NumberTitle
6,252,670 Method for accurately calibrating a constant-angle reflection-interference spectrometer (CARIS) for measuring photoresist thickness
6,252,671 System for downloading fonts
6,252,672 Image communication apparatus
6,252,673 Printing device and recording paper control
6,252,674 Host device and picture image output device
6,252,675 Apparatus and method for halftone hybrid screen generation
6,252,676 System and method for proofing
6,252,677 Method and apparatus for rendering object oriented image data using multiple rendering states selected based on imaging operator type
6,252,678 Image formation method
6,252,679 Composite halftone screens with stochastically distributed clusters or lines



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