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GLASS FOR BEAD

申请公布号:JPS5641852(A)

申请号:JP19790117917

申请日期:1979.09.17

申请公布日期:1981.04.18

申请人:
OBARA OPTICAL GLASS

发明人:HATSUTA HISAO

分类号:C03C3/064;C03C3/115;C03C3/118;C03C12/00

主分类号:C03C3/064

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