Manufacture of screws with a self-cutting thread,申请号US19370127266-传众专利搜索

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发明名称	Manufacture of screws with a self-cutting thread
摘要
申请公布号	US2232335(A)	申请公布日期	1941.02.18
申请号	US19370127266	申请日期	1937.02.23
申请人	PAUL BECHERT	发明人	MEERSTEINER FRIEDA
分类号	B21H3/02	主分类号	B21H3/02
代理机构		代理人
主权项
地址

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