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Zero-bias gridded gun
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Patent number 4,321,505
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Issue date Mar 23, 1982
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Varian Associates, Inc.
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George V. Miram
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H01 - BASIC ELECTRIC ELEMENTS
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Zero-bias gridded gun
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Patent number 4,227,116
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Issue date Oct 7, 1980
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Varian Associates, Inc.
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George V. Miram
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H01 - BASIC ELECTRIC ELEMENTS
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Dual mode gridded gun
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Patent number 4,023,061
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Issue date May 10, 1977
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Varian Associates
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Albert Edward Berwick
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H01 - BASIC ELECTRIC ELEMENTS
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