Spreader fastener of the paper-fastener type,申请号US19470779354-传众专利搜索

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发明名称	Spreader fastener of the paper-fastener type
摘要
申请公布号	US2480323(A)	申请公布日期	1949.08.30
申请号	US19470779354	申请日期	1947.10.11
申请人	HARRY DERMAN	发明人	DERMAN HARRY
分类号	B42F3/00	主分类号	B42F3/00
代理机构		代理人
主权项
地址

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