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发明名称
摘要
申请公布号
DE2240990(B2)
申请公布日期
1980.10.30
申请号
DE19722240990
申请日期
1972.08.21
申请人
BUCKBEE-MEARS CO., ST. PAUL, MINN. (V.ST.A.)
发明人
HOPPKE, JERRELL B., HAM LAKE, MINN. (V.ST.A.)
分类号
H01J9/42;G01B11/12;H01J9/14;(IPC1-7):H01J29/81
主分类号
H01J9/42
代理机构
代理人
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