Paper drilling machine,申请号US19370166974-传众专利搜索

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发明名称	Paper drilling machine
摘要
申请公布号	US2142560(A)	申请公布日期	1939.01.03
申请号	US19370166974	申请日期	1937.10.02
申请人	HARRIS-SEYBOLD-POTTER COMPANY	发明人	EICKMAN WALTER C.
分类号	B26F1/16	主分类号	B26F1/16
代理机构		代理人
主权项
地址

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