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发明名称
BOBBIN CASE
摘要
申请公布号
CA540489(A)
申请公布日期
1957.05.07
申请号
CAD540489
申请日期
申请人
BIRTMAN ELECTRIC COMPANY
发明人
FRANK S. HOWARD
分类号
主分类号
代理机构
代理人
主权项
地址
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