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经营范围
发明名称
SEPARATOR
摘要
申请公布号
JPS6443361(A)
申请公布日期
1989.02.15
申请号
JP19870196312
申请日期
1987.08.07
申请人
NIIGATA ENG CO LTD
发明人
SAKAI TADAAKI
分类号
B04C5/10;B04C5/14
主分类号
B04C5/10
代理机构
代理人
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