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经营范围
发明名称
ELECTRON DISCHARGE DEVICE HEATER
摘要
申请公布号
GB1218667(A)
申请公布日期
1971.01.06
申请号
GB19680054690
申请日期
1968.11.18
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
LLOYD C. EMERICK
分类号
H01J1/22
主分类号
H01J1/22
代理机构
代理人
主权项
地址
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