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发明名称
JOINING METHOD FOR VACUUM VALVE AND VACUUM VALVE
摘要
申请公布号
JPH03254030(A)
申请公布日期
1991.11.13
申请号
JP19900049300
申请日期
1990.03.02
申请人
HITACHI LTD
发明人
SAKAMOTO MASAHIKO;OKAMURA HISANOBU;FUNAMOTO TAKAO;KOGUCHI YOSHIO
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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