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Specification of Charles William Graham
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Patent for "Improvements in manufacturing pathological, anatomical, zoological, geological, botanical and mineralogical representations in relief, and in arranging them for use".
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Patent for "Improvements in manufacturing pathological, anatomical, zoological, geological, botanical and mineralogical representations in relief, and in arranging them for use".
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"Patent for "Improvements in manufacturing pathological, anatomical, zoological, geological, botanical and mineralogical representations in relief, and in arranging them for use"."
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