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发明名称
Registered writing beam
摘要
申请公布号
GB2105858(A)
申请公布日期
1983.03.30
申请号
GB19810032432
申请日期
1981.10.28
申请人
HAROON * AHMED;GERAINT ALWYN CLAYTON * JONES
发明人
GERAINT ALWYN CLAYTON * JONES;HAROON * AHMED
分类号
H01J37/304;(IPC1-7):G03B41/00
主分类号
H01J37/304
代理机构
代理人
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