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经营范围
发明名称
Polarized electric plugs
摘要
申请公布号
US3149898(A)
申请公布日期
1964.09.22
申请号
US19580715026
申请日期
1958.02.13
申请人
HEYMAN MANUFACTURING CO.
发明人
JR. FERDINAND KLUMPP,
分类号
H01R13/642
主分类号
H01R13/642
代理机构
代理人
主权项
地址
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