Perfectionnements aux appareils à nettoyer les chaudières,申请号FRD686966-传众专利搜索

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发明名称	Perfectionnements aux appareils à nettoyer les chaudières
摘要
申请公布号	FR686966(A)	申请公布日期	1930.08.01
申请号	FRD686966	申请日期	1929.12.19
申请人		发明人	BAYER LEO JOHN
分类号	F28G3/16	主分类号	F28G3/16
代理机构		代理人
主权项
地址

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