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Okamoto Grinding Machine Japan

38 rows Okamoto Kakusaburo is founded Okamoto dedicated machine tools Manufacturing 1930. Develop Japans first gear grinding machine ASG-2 type 1935 Organization and Co. Ltd. changed its name Okamoto Machine Tool Works 1953 Develop Japans first surface grinding machine PSG-6 type 1954 Develop internal grinding machine IGM series 1955

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