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The Papers of James D. LeVan

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U.S. Patent of James D. LeVan - Control for Electron Tubes

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U.S. Patent of James D. LeVan - Electrical Discharge Device

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U.S. Patent of James D. LeVan - Electrical Discharge Tube

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U.S. Patent of James D. LeVan - Electron Discharge Tube

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U.S. Patent of James D. LeVan - Gaseous Discharge Rectifier

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U.S. Patent of James D. LeVan - Gaseous Discharge Tube System

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U.S. Patent of James D. LeVan - Grid Controlled Gaseous Discharge Tube

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U.S. Patent of James D. LeVan - Modular Electron-Discharge Tube

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U.S. Patent of James D. LeVan - Seal

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U.S. Patent of James D. LeVan - Switch Tube Device for Waveguides

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U.S. Patent of James D. LeVan - Thermionic Gaseous Discharge Rectifier

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