Procédé et appareil pour déterminer et indiquer à distance la présence de gaz combustibles dans l'air atmosphérique et leur quantité,申请号FRD702402-传众专利搜索

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发明名称	Procédé et appareil pour déterminer et indiquer à distance la présence de gaz combustibles dans l'air atmosphérique et leur quantité
摘要
申请公布号	FR702402(A)	申请公布日期	1931.04.08
申请号	FRD702402	申请日期	1930.09.19
申请人	VULKANWERKE G.M.B.H.	发明人
分类号	G01N25/46	主分类号	G01N25/46
代理机构		代理人
主权项
地址

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