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经营范围
发明名称
Hermetic sealing
摘要
申请公布号
GB2067449(A)
申请公布日期
1981.07.30
申请号
GB19810002062
申请日期
1981.01.23
申请人
VACUUM INTERRUPTERS LTD
发明人
分类号
B23K1/00;B23K35/30;H01H33/662;H01H33/668;(IPC1-7):B23K1/12
主分类号
B23K1/00
代理机构
代理人
主权项
地址
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