Improvements in signalling for aerial navigation,申请号GB19360003038-传众专利搜索

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发明名称	Improvements in signalling for aerial navigation
摘要
申请公布号	GB474821(A)	申请公布日期	1937.11.08
申请号	GB19360003038	申请日期	1936.01.31
申请人	ROGER BRAUNSTEIN	发明人
分类号	B64F1/18	主分类号	B64F1/18
代理机构		代理人
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地址

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