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发明名称
OPTISCHE SCHAKELAAR, OMVATTENDE EEN ELEKTRO-OPTISCH KRISTALPLAATJE EN EEN KRISTALPLAATJE MET DUBBELE BREKING; LICHTBESTURINGSINRICHTING, WELKE EEN DERGELIJKE OPTISCHE SCHAKELAAR OMVAT.
摘要
申请公布号
NL156825(B)
申请公布日期
1978.05.16
申请号
NL19720012542
申请日期
1972.09.15
申请人
HITACHI, LTD., TOKIO.
发明人
分类号
G02F1/03;G02F1/05;(IPC1-7):G02F1/03
主分类号
G02F1/03
代理机构
代理人
主权项
地址
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