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发明名称
Vorrichtung fuer Blinde zur Erkennung der Umgebung und Feststellung von Formen,Farben und Entfernungen
摘要
申请公布号
DE1441501(A1)
申请公布日期
1969.01.09
申请号
DE19641441501
申请日期
1964.08.28
申请人
FOSTER,DAVID BLYTHE
发明人
BLYTHE FOSTER,DAVID
分类号
G09B21/00
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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