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Protecting color pictures exposed to high humidities against fading and staining
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Projection printer
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Exposure timing mechanism
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Photoelectric color analyzer
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Projection printer
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Autofocus projection printer
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Photographic shutter operating and control mechanism
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Regeneration of photographic silver bleach solution
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Photographic exposure timing
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Reexposure apparatus
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Projection printer
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Light color temperature control
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Photographic printing exposure control method and apparatus
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