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经营范围
发明名称
4-ring, 3-phase, a. c. arc heater
摘要
申请公布号
US3351799(A)
申请公布日期
1967.11.07
申请号
US19660534991
申请日期
1966.03.10
申请人
WINKLER EVA M;HUMPHREY RICHARD L
发明人
WINKLER EVA M.;HUMPHREY RICHARD L.
分类号
H05H1/36
主分类号
H05H1/36
代理机构
代理人
主权项
地址
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