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发明名称
MANUFACTURE OF CONCRETE POROUS PIPE
摘要
申请公布号
JPS63203304(A)
申请公布日期
1988.08.23
申请号
JP19870036631
申请日期
1987.02.19
申请人
MITSUBISHI MINING & CEMENT CO LTD
发明人
TAMURA YASUO;SANNOMIYA YOSHITAKA;NIKI MOHAKU;SHIMIZU MASAHIRO;MURATA KOZO
分类号
B28B21/80;B28B21/30
主分类号
B28B21/80
代理机构
代理人
主权项
地址
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