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Welding complex
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Patent number 4,910,374
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Issue date Mar 20, 1990
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Vladimir K. Lebedev
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Method of friction welding
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Patent number 4,712,724
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Issue date Dec 15, 1987
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Vladimir K. Lebedev
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Apparatus for flash welding of pipes
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Patent number 4,490,599
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Issue date Dec 25, 1984
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Institut Elektrovarki Imeni E.O. Patona
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Vladimir K. Lebedev
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Pipe resistance butt welding apparatus
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Patent number 4,436,974
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Issue date Mar 13, 1984
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Institut Elektrosvarki Imeni E.O. Patona Akademii Nauk Ukrainskoi SSR
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Vladimir K. Lebedev
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Adjustable transformer
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Patent number 4,032,840
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Issue date Jun 28, 1977
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Vladimir Konstantinovich Lebedev
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G05 - CONTROLLING REGULATING