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发明名称
MOBILITY AND ORIENTATION MAP FOR VISUALLY IMPAIRED AND BLIND PERSONS
摘要
申请公布号
IL55287(A)
申请公布日期
1980.01.31
申请号
IL19780055287
申请日期
1978.08.04
申请人
MEIR ESHEL
发明人
分类号
A63F1/02;G09B21/00;(IPC1-7):G09B21/00
主分类号
A63F1/02
代理机构
代理人
主权项
地址
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