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发明名称
摘要
申请公布号
JPH0563518(B2)
申请公布日期
1993.09.10
申请号
JP19890209500
申请日期
1989.08.11
申请人
WAIOOBEN INC
发明人
RICHAADO KEI BURAUN;ROBAATO DABURYUU SUTEITSUKUMAN
分类号
E21B21/00;C04B24/26;C04B28/00;C09K8/46;C09K8/50;C09K8/56;C09K17/00;C09K17/02;C09K17/42;C09K17/48;C09K103/00;E02D3/12;(IPC1-7):C09K17/00
主分类号
E21B21/00
代理机构
代理人
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地址
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