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经营范围
发明名称
Elektromagnetisches Fuehlzeichen fuer Blinde
摘要
申请公布号
DE1094808(B)
申请公布日期
1960.12.15
申请号
DE1959ST15650
申请日期
1959.10.03
申请人
STANDARD ELEKTRIK LORENZ AKTIENGESELLSCHAFT
发明人
BOETTIG ALFRED
分类号
G08B5/32
主分类号
G08B5/32
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代理人
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地址
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