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Torque limiter
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Patent number 7,354,346
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Issue date Apr 8, 2008
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NTN Corporation
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Seiichi Takada
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Torque limiter
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Patent number 7,318,776
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Issue date Jan 15, 2008
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NTN Corporation
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Masaaki Honda
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lubricating composition
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Patent number 6,673,750
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Issue date Jan 6, 2004
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NTN Corporation
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Masakazu Hirata
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...