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发明名称
LIGHTPEN
摘要
申请公布号
EP0219513(B1)
申请公布日期
1990.04.18
申请号
EP19860902044
申请日期
1986.02.24
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
PERSSON, SVEN, ANDERS, ROLAND
分类号
G02B6/00;G02B6/06;G06F3/037;G06K7/10
主分类号
G02B6/00
代理机构
代理人
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