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Fast heating cathode
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Patent number 6,956,320
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Issue date Oct 18, 2005
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Christopher John Howard Wort
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H01 - BASIC ELECTRIC ELEMENTS
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3803441
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Patent number 3,803,441
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Issue date Apr 9, 1974
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H01 - BASIC ELECTRIC ELEMENTS
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3740606
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Patent number 3,740,606
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H01 - BASIC ELECTRIC ELEMENTS
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3652894
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Patent number 3,652,894
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H01 - BASIC ELECTRIC ELEMENTS
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3553521
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Patent number 3,553,521
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H01 - BASIC ELECTRIC ELEMENTS
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3495121
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Patent number 3,495,121
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H01 - BASIC ELECTRIC ELEMENTS
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3432714
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Patent number 3,432,714
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Issue date Mar 11, 1969
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H01 - BASIC ELECTRIC ELEMENTS
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3227911
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H01 - BASIC ELECTRIC ELEMENTS
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3221203
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H01 - BASIC ELECTRIC ELEMENTS
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3175118
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Patent number 3,175,118
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H01 - BASIC ELECTRIC ELEMENTS
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3121035
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H01 - BASIC ELECTRIC ELEMENTS
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3117249
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Patent number 3,117,249
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H01 - BASIC ELECTRIC ELEMENTS
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2860275
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H01 - BASIC ELECTRIC ELEMENTS
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2753480
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H01 - BASIC ELECTRIC ELEMENTS
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2672567
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H01 - BASIC ELECTRIC ELEMENTS