Sheet holding tool,申请号US19420453534-传众专利搜索

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发明名称	Sheet holding tool
摘要
申请公布号	US2350630(A)	申请公布日期	1944.06.06
申请号	US19420453534	申请日期	1942.08.04
申请人	FRANCIS L. SMITH	发明人	MELCHER ALFRED A.
分类号	B25B31/00	主分类号	B25B31/00
代理机构		代理人
主权项
地址

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