Machine for perforating, slitting, or scoring sheets,申请号US19440564022-传众专利搜索

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发明名称	Machine for perforating, slitting, or scoring sheets
摘要
申请公布号	US2390426(A)	申请公布日期	1945.12.04
申请号	US19440564022	申请日期	1944.11.18
申请人	DAVIDSON JOHN A	发明人	DAVIDSON JOHN A.
分类号	B26D1/24	主分类号	B26D1/24
代理机构		代理人
主权项
地址

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