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Universal black ink
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Bi-level cartridge with dual drives for endless ribbon
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Chemical carbonless copy paper
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Improved chemical carbon-free copy paper and transfer medium
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Improved chemical carbon-free copy paper and image recording medium
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Improved chemical carbonless copy paper and image receptor medium therefor
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Improved chemical carbonless copy paper and¹transfer medium therefor
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Chemical carbonless copy paper and image receptor medium therefor
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Water insensitive image receptor coating
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Pressure sensitive magnetic image transfer media
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Flow agent for ink systems
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