Improvements in dental engine hand pieces,申请号GB19470007571-传众专利搜索

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发明名称	Improvements in dental engine hand pieces
摘要
申请公布号	GB625955(A)	申请公布日期	1949.07.06
申请号	GB19470007571	申请日期	1947.03.19
申请人	GUSTAF ERIK BJORKLUND	发明人
分类号	A61C1/14	主分类号	A61C1/14
代理机构		代理人
主权项
地址

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