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发明名称
METHOD FOR PRODUCING INTERNAL-HOLLOW, DOUBLE OR MULTIPLE OXIDE-CERAMICAL BALLS RESPECTIVELY SPHERES HAVING WITHIN THE SAME INTERNAL BALL
摘要
申请公布号
HUT63984(A)
申请公布日期
1993.11.29
申请号
HU19920000726
申请日期
1992.03.04
申请人
KAPTAY,GYOERGY,HU
发明人
KAPTAY,GYOERGY,HU
分类号
(IPC1-7):B32B31/00
主分类号
(IPC1-7):B32B31/00
代理机构
代理人
主权项
地址
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