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JP2000090886A
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Tungsten halogen lamp and manufacture thereof
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Halogen lamp
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Tungsten halogen lamp
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Tungsten halogen lamp and manufacture thereof
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Tungsten halogen lamp and manufacture thereof
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Halogen bulb
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Formation of titanium dioxide film
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Method of forming conductive film
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Fluorescent material
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Electric-discharge tube containing electrodes prepared from thorium(th-232)-nickel alloy
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Multipurpose crime prevention mat
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Generator for radon gas
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Discharge tube using sintered metal electrode containing trium(th-232)metal
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Method of producing sintered metal electrode containing thorium(th-232)metal
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