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Insulated electrical conductor
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Manufacture of magnetic alloys
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Manufacture of submarine or other signaling cables
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Electrical insulating material
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Manufacture of refined gutta percha, balata, and the like
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Manufacture of magnetic alloy
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Manufacture of articles from thermoplastic materials
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Electrical insulating material
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Electrical insulating materials
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Treatment of gutta percha, balata, and like thermoplastic natural and artificial products and the manufacture of molded articles therefrom
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Electrical insulating material
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Electrical insulating materials
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Submarine cable
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Magnetic alloy
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Magnetic alloy
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Refinement of nickel alloys
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Magnetic alloy
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Apparatus for laying or guiding ropes, chains, and cables
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Magnetic alloy
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