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发明名称
CERAMIC BALL
摘要
申请公布号
JPH07171562(A)
申请公布日期
1995.07.11
申请号
JP19930319969
申请日期
1993.12.20
申请人
WAKAMATSU NOBUAKI
发明人
WAKAMATSU NOBUAKI
分类号
C02F1/30;(IPC1-7):C02F1/30
主分类号
C02F1/30
代理机构
代理人
主权项
地址
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