Optical signaling of train approaching grade crossing,申请号CZ20100022470U-传众专利搜索

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发明名称	Optical signaling of train approaching grade crossing
摘要
申请公布号	CZ21421(U1)	申请公布日期	2010.11.10
申请号	CZ20100022470U	申请日期	2010.03.24
申请人	SVOBODA RADEK	发明人	SVOBODA RADEK
分类号	B61L29/24;B61L5/12	主分类号	B61L29/24
代理机构		代理人
主权项
地址

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