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经营范围
发明名称
ELECTRIC HEATER
摘要
申请公布号
CA456709(A)
申请公布日期
1949.05.17
申请号
CAD456709
申请日期
申请人
THE CANADIAN CHROMALOX COMPANY
发明人
EDWIN L. WIEGAND
分类号
主分类号
代理机构
代理人
主权项
地址
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