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发明名称
METHOD OF GUIDING WALK OF BLIND PERSON
摘要
申请公布号
JPS5549406(A)
申请公布日期
1980.04.09
申请号
JP19790107490
申请日期
1979.08.22
申请人
SADOSHIMA METAL
发明人
YOKOYAMA TETSUO
分类号
E01F9/04;E01F9/00;E01F9/047;E01F9/06
主分类号
E01F9/04
代理机构
代理人
主权项
地址
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