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经营范围
发明名称
Tunable magnetron
摘要
申请公布号
US3247421(A)
申请公布日期
1966.04.19
申请号
US19620237646
申请日期
1962.11.14
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
BACKMARK NILS ERIK GUSTAF
分类号
H01J23/213;H01J25/587;H03C3/32
主分类号
H01J23/213
代理机构
代理人
主权项
地址
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