Improvements in or relating to means for masking traffic control lights,申请号GB19390023060-传众专利搜索

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发明名称	Improvements in or relating to means for masking traffic control lights
摘要
申请公布号	GB533308(A)	申请公布日期	1941.02.11
申请号	GB19390023060	申请日期	1939.08.10
申请人	RUSSELL WARDLE;WALTER NEWCOMBE	发明人
分类号	G08G1/095	主分类号	G08G1/095
代理机构		代理人
主权项
地址

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