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经营范围
发明名称
MECHANICAL SEAL
摘要
申请公布号
JPS5533932(A)
申请公布日期
1980.03.10
申请号
JP19780105808
申请日期
1978.08.30
申请人
HITACHI CHEMICAL CO LTD
发明人
AIBA YASUHIRO
分类号
F16J15/34
主分类号
F16J15/34
代理机构
代理人
主权项
地址
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