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Kunio Obara
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Urawa, JP
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Patent Grant
Copper-tin type sintered alloy for oil-impregnated bearing excellen...
Patent number
4,274,874
Issue date
Jun 23, 1981
Mitsubishi Kinzoku Kabushiki Kaisha
Kunio Obara
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...