Improvements in or relating to mouthpieces with valve-casing for gas-masks and the like,申请号GB19290032729-传众专利搜索

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发明名称	Improvements in or relating to mouthpieces with valve-casing for gas-masks and the like
摘要
申请公布号	GB337958(A)	申请公布日期	1930.11.13
申请号	GB19290032729	申请日期	1929.10.28
申请人	SVEN AXEL HENRIK ENGHOFF	发明人
分类号	F16K15/14	主分类号	F16K15/14
代理机构		代理人
主权项
地址

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