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  1. AIDA, Toshio; OKAMOTO, Takashi

    On the Cutting Mechanism of Coal

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    Mining and Materials Processing Institute of Japan, 1960

    Published in: Journal of the Mining Institute of Japan, 76 (1960) 861, Seite 167-172

  2. AIDA, Toshio; OKAMOTO, Takashi

    On the Coal Cutting by Cutter-Picks

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    Mining and Materials Processing Institute of Japan, 1958

    Published in: Journal of the Mining Institute of Japan, 74 (1958) 835, Seite 13-18

  3. MIKUMO, Einosuke; AIDA, Toshio; OKAMOTO, Takashi

    On the Relation between the Cutting Resistance and the Hardness of Coal (3) : ピック型バイトによる切削試験 : ピック型バイトによる切削試験

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    Mining and Materials Processing Institute of Japan, 1954

    Published in: Journal of the Mining Institute of Japan, 70 (1954) 796, Seite 453-456