Signaling system,申请号US19240750562-传众专利搜索

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发明名称	Signaling system
摘要
申请公布号	US1757674(A)	申请公布日期	1930.05.06
申请号	US19240750562	申请日期	1924.11.18
申请人	LEWIS LLOYD M;ANDREW SEZEKOFF	发明人	LEWIS LLOYD M.;SEZEKOFF ANDREW
分类号	B60Q1/38	主分类号	B60Q1/38
代理机构		代理人
主权项
地址

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