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Self-igniting long arc plasma torch
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Patent number 8,581,496
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Issue date Nov 12, 2013
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Oaks Plasma, LLC.
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Alexander Filippovich Rutberg
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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3200285
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Patent number 3,200,285
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Issue date Aug 10, 1965
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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2662992
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Patent number 2,662,992
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Issue date Dec 15, 1953
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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2354655
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Patent number 2,354,655
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Issue date Aug 1, 1944
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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1850598
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Patent number 1,850,598
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Issue date Mar 22, 1932
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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1262916
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Patent number 1,262,916
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Issue date Apr 16, 1918
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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1049555
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Patent number 1,049,555
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Issue date Jan 7, 1913
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR