Improvements in or relating to air duct dampers,申请号GB19480032327-传众专利搜索

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发明名称	Improvements in or relating to air duct dampers
摘要
申请公布号	GB686666(A)	申请公布日期	1953.01.28
申请号	GB19480032327	申请日期	1948.12.22
申请人	KARL MICHAELIS	发明人
分类号	F24F13/062;F24F13/14	主分类号	F24F13/062
代理机构		代理人
主权项
地址

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