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经营范围
发明名称
Variable resistance device
摘要
申请公布号
GB849871(A)
申请公布日期
1960.09.28
申请号
GB19590000432
申请日期
1959.01.05
申请人
VAPOR HEATING CORPORATION
发明人
分类号
H01B1/00
主分类号
H01B1/00
代理机构
代理人
主权项
地址
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