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Metal halide lamp
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Patent number 6,404,129
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Issue date Jun 11, 2002
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Koninklijke Philips Electronics N.V.
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Josephus Christiaan Maria Hendricx
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H01 - BASIC ELECTRIC ELEMENTS
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Radiation device
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Patent number 4,868,450
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Issue date Sep 19, 1989
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Walter L. Colterjohn
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H01 - BASIC ELECTRIC ELEMENTS
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Lens pipe arc lamp
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Patent number 4,823,043
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Issue date Apr 18, 1989
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ILC Technology, Inc.
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Roy D. Roberts
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G02 - OPTICS
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3771731
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Patent number 3,771,731
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Issue date Nov 13, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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1617179
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Patent number 1,617,179
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Issue date Feb 8, 1927
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H01 - BASIC ELECTRIC ELEMENTS