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发明名称
摘要
申请公布号
JPS5521221(B2)
申请公布日期
1980.06.07
申请号
JP19740021258
申请日期
1974.02.22
申请人
发明人
分类号
F16D69/00;C09K3/14;F16D65/092
主分类号
F16D69/00
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