Perfectionnements aux appareils de sondage par écho, et autres appareils utilisant les ondes de pression sous-marines,申请号FRD949005-传众专利搜索

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发明名称	Perfectionnements aux appareils de sondage par écho, et autres appareils utilisant les ondes de pression sous-marines
摘要
申请公布号	FR949005(A)	申请公布日期	1949.08.18
申请号	FRD949005	申请日期	1947.07.04
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人
分类号	G01S7/529	主分类号	G01S7/529
代理机构		代理人
主权项
地址

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