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发明名称
CERAMIC MASS FOR MAKING DRAINING PIPES AND ITS PRODUCTION METHOD
摘要
申请公布号
SU796217(A1)
申请公布日期
1981.01.15
申请号
SU19782670786
申请日期
1978.09.29
申请人
KH POLT I IM.V.I.LENINA
发明人
GRINEVA ALEKSANDRA M,SU;KUKOLEV GRIGORIJ V,SU
分类号
(IPC1-7):C04B21/00
主分类号
(IPC1-7):C04B21/00
代理机构
代理人
主权项
地址
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