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发明名称
PRESSURE ACTUATED LIGHT PEN
摘要
申请公布号
US4109146(A)
申请公布日期
1978.08.22
申请号
US19770790430
申请日期
1977.04.25
申请人
NORTHERN TELECOM LIMITED
发明人
HILLMAN, GARTH DECKER
分类号
G02B6/35;G06F3/033;(IPC1-7):G02B5/14
主分类号
G02B6/35
代理机构
代理人
主权项
地址
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