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发明名称
DIFFERENTIATION CRASHER
摘要
申请公布号
KR790001753(Y1)
申请公布日期
1979.10.18
申请号
KR19780004223U
申请日期
1978.08.10
申请人
OH SE CHAN
发明人
OH SE CHAN
分类号
B02C15/04;(IPC1-7):B02C15/04
主分类号
B02C15/04
代理机构
代理人
主权项
地址
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