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经营范围
发明名称
RENGOERINGSAPPARAT.
摘要
申请公布号
FI923294(A0)
申请公布日期
1992.07.17
申请号
FI19920003294
申请日期
1992.07.17
申请人
B.H.R. GROUP LIMITED
发明人
SAUNDERS, DAVID HENRY;GROVE, THOMAS WILLIAM
分类号
B08B9/04;B24C3/32;E21B37/00;E21B41/00;(IPC1-7):E21B/
主分类号
B08B9/04
代理机构
代理人
主权项
地址
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解析几何教具
