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经营范围
发明名称
SEALING DEVICE
摘要
申请公布号
JPS55112991(A)
申请公布日期
1980.09.01
申请号
JP19790019794
申请日期
1979.02.23
申请人
HITACHI LTD
发明人
TANAKA TAKEO;HAYASHI MASAKATSU
分类号
F16J15/06;F25B1/10;F25B39/02;F28D7/00;F28D7/16;F28F9/00
主分类号
F16J15/06
代理机构
代理人
主权项
地址
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