Safety knife bar latch for paper cutters,申请号US19400353184-传众专利搜索

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发明名称	Safety knife bar latch for paper cutters
摘要
申请公布号	US2254467(A)	申请公布日期	1941.09.02
申请号	US19400353184	申请日期	1940.08.19
申请人	THE CHALLENGE MACHINERY COMPANY	发明人	BARNEY FREEMAN
分类号	B26D7/22	主分类号	B26D7/22
代理机构		代理人
主权项
地址

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