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经营范围
发明名称
PRESTRESSED CONCRETE PIPE
摘要
申请公布号
JPS5747611(A)
申请公布日期
1982.03.18
申请号
JP19800123298
申请日期
1980.09.05
申请人
NAKAGAWA HIYUUMUKAN KOGYO KK
发明人
KURATA HISAFUMI
分类号
B28B21/68;B28B21/60;B28B23/04;B28B23/08
主分类号
B28B21/68
代理机构
代理人
主权项
地址
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