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经营范围
发明名称
OPTOACUSTIC ELECTRONIC DRAWING BOARD
摘要
申请公布号
PL275479(A2)
申请公布日期
1989.08.07
申请号
PL19880275479
申请日期
1988.10.24
申请人
UNIV GDANSKI
发明人
LETOWSKI STANISLAW
分类号
G06F;G06F3/033;(IPC1-7):G06F/
主分类号
G06F
代理机构
代理人
主权项
地址
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