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发明名称
SIMPLE AUTOMATIC CALIBRATING APPARATUS FOR FILAMENT CURRENT OF ELECTRONIC BEAM WELDING MACHINE
摘要
申请公布号
JPH0366484(A)
申请公布日期
1991.03.22
申请号
JP19890201611
申请日期
1989.08.02
申请人
NEC CORP
发明人
NAKAJIMA TORU
分类号
B23K15/02;H01J37/315
主分类号
B23K15/02
代理机构
代理人
主权项
地址
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