Method of producing holes in thin sheets of metal or glass,申请号US19380218669-传众专利搜索

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发明名称	Method of producing holes in thin sheets of metal or glass
摘要
申请公布号	US2266349(A)	申请公布日期	1941.12.16
申请号	US19380218669	申请日期	1938.07.11
申请人	BERNHARD WEMPE	发明人	WEMPE BERNHARD
分类号	B23P15/16;C03B23/26;H01J19/00	主分类号	B23P15/16
代理机构		代理人
主权项
地址

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