Locking device for sewing machines and the like,申请号US19330683948-传众专利搜索

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发明名称	Locking device for sewing machines and the like
摘要
申请公布号	US1957557(A)	申请公布日期	1934.05.08
申请号	US19330683948	申请日期	1933.08.07
申请人	FRANK SCHWAHN	发明人	SCHWAHN FRANK
分类号	D05B75/02	主分类号	D05B75/02
代理机构		代理人
主权项
地址

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