Improvements in or relating to a low water alarm for steam boilers,申请号GB19470007012-传众专利搜索

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发明名称	Improvements in or relating to a low water alarm for steam boilers
摘要
申请公布号	GB633139(A)	申请公布日期	1949.12.12
申请号	GB19470007012	申请日期	1947.03.13
申请人	SALAH EL DIN EL SHAFIE	发明人
分类号	F22B37/42	主分类号	F22B37/42
代理机构		代理人
主权项
地址

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