Lock lever for telescoping elements,申请号US19300466952-传众专利搜索

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发明名称	Lock lever for telescoping elements
摘要
申请公布号	US1822670(A)	申请公布日期	1931.09.08
申请号	US19300466952	申请日期	1930.07.10
申请人	NATIONAL BLANK BOOK COMPANY	发明人	SCHADE JOHN
分类号	B42F13/00	主分类号	B42F13/00
代理机构		代理人
主权项
地址

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