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经营范围
发明名称
MOVABLE VACUUM VALVE STRUCTURE
摘要
申请公布号
JPS52131175(A)
申请公布日期
1977.11.02
申请号
JP19760047743
申请日期
1976.04.28
申请人
HITACHI LTD
发明人
UCHIKOSHI YOSHIHIRO
分类号
H01H33/66
主分类号
H01H33/66
代理机构
代理人
主权项
地址
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