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Low-power, high-pressure discharge lamp
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Patent number 4,717,852
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Issue date Jan 5, 1988
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Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
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Alexander Dobrusskin
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H01 - BASIC ELECTRIC ELEMENTS
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High-pressure sodium discharge lamp
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Patent number 4,490,642
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Issue date Dec 25, 1984
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Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
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Alexander Dobrusskin
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H01 - BASIC ELECTRIC ELEMENTS
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Halogen-metal vapor discharge lamp
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Patent number 4,249,102
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Issue date Feb 3, 1981
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Patent-Treuhand-Gesellschaft fur elektrische Gluehlampen mbH
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Rudolf Krieg
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H01 - BASIC ELECTRIC ELEMENTS
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