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Display tube
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Patent number 4,659,964
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Issue date Apr 21, 1987
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U.S. Philips Corporation
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Johannes H. T. Van Roosmalen
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H01 - BASIC ELECTRIC ELEMENTS
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Electron gun cathode support
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Patent number 4,309,638
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Issue date Jan 5, 1982
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U.S. Philips Corporation
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Johannes H. T. Van Roosmalen
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H01 - BASIC ELECTRIC ELEMENTS
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Cathode-ray tube
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Patent number 4,268,777
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Issue date May 19, 1981
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U.S. Philips Corporation
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Johannes H. T. Van Roosmalen
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H01 - BASIC ELECTRIC ELEMENTS
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Device having a camera tube
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Patent number 4,266,248
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Issue date May 5, 1981
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U.S. Philips Corporation
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Johannes H. T. Van Roosmalen
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H01 - BASIC ELECTRIC ELEMENTS
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