Improvements relating to water tube boilers,申请号GB19310026683-传众专利搜索

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发明名称	Improvements relating to water tube boilers
摘要
申请公布号	GB390155(A)	申请公布日期	1933.03.24
申请号	GB19310026683	申请日期	1931.09.24
申请人	JOHN PROTHERO DAVIES	发明人
分类号	F22B37/26	主分类号	F22B37/26
代理机构		代理人
主权项
地址

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