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发明名称	SIGNAL FOR RAILWAY CROSSINGS
摘要
申请公布号	CA362882(A)	申请公布日期	1936.12.22
申请号	CAD362882	申请日期
申请人	FRANK W. GRISWOLD	发明人	FRANK W. GRISWOLD
分类号		主分类号
代理机构		代理人
主权项
地址

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