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Amable Alfred Fredet

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French

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Patent Model - Improved Mode of Disintegrating Vegetable Substances for Paper-Pulp

Patent Model - Improved Mode of Disintegrating Vegetable Substances for Paper-Pulp; Apr 25 1865; 2015.14.522;

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AT HAGLEY, we invite people of all ages to investigate and experience the unfolding history of American business, technology, and innovation and its impact on the world, from our home at the historic DuPont powder yards on the banks of the Brandywine River

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