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经营范围
发明名称
MACHINED CIRCUIT ELEMENT PROCESS
摘要
申请公布号
US3530573(A)
申请公布日期
1970.09.29
申请号
USD3530573
申请日期
1967.02.24
申请人
SPRAGUE ELECTRIC CO.
发明人
WALTER HELGELAND
分类号
B23K26/40;H01C17/24;(IPC1-7):H01C7/00
主分类号
B23K26/40
代理机构
代理人
主权项
地址
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