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Method for coating
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Patent number 4,258,091
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Issue date Mar 24, 1981
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Daniil A. Dudko
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Plasma arc cutting torch
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Patent number 4,059,743
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Issue date Nov 22, 1977
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Eduard Migranovich Esibian
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Wear-resistant composite material
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Patent number 3,976,481
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Issue date Aug 24, 1976
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Daniil Andreevich Dudko
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Wear-resistant composite material
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Patent number 3,933,482
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Issue date Jan 20, 1976
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Daniil Andreevich Dudko
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...