émetteur d'ondes de pression et amplificateur d'ondes de pression pour réseaux de distribution de gaz,申请号FRD1110070-传众专利搜索

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发明名称	émetteur d'ondes de pression et amplificateur d'ondes de pression pour réseaux de distribution de gaz
摘要
申请公布号	FR1110070(A)	申请公布日期	1956.02.06
申请号	FRD1110070	申请日期	1954.10.14
申请人	G. KROMSCHRODER AKTIENGESELLSCHAFT	发明人
分类号	F23Q21/00;G05D16/18	主分类号	F23Q21/00
代理机构		代理人
主权项
地址

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