Free Full-text Worldwide Patent Searching - 10,475,370 patent documents - updated Aug 26, 2010
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US 4870497 (granted patent)
Progressive transmission of high resolution two-tone facsimile images
Free Full-text Worldwide Patent Searching - 10,475,370 patent documents - updated Aug 26, 2010
Progressive transmission of high resolution two-tone facsimile images
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