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发明名称
Method of producing metallic ribbon attaching element and welding the same
摘要
申请公布号
US2779858(A)
申请公布日期
1957.01.29
申请号
US19550507318
申请日期
1955.05.10
申请人
PITYO ALBERT F
发明人
PITYO ALBERT F.
分类号
B21C37/22;H01J29/82
主分类号
B21C37/22
代理机构
代理人
主权项
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