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Electrical insulating oil compositions
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Patent number 4,070,297
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Issue date Jan 24, 1978
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Nippon Oil Co., Ltd.
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Midori Masunaga
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Electrical insulating oils
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Patent number 4,033,854
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Issue date Jul 5, 1977
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Nippon Oil Company, Ltd.
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Tadashi Ohmori
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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