Tube-squaring attachment,申请号US19470760667-传众专利搜索

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发明名称	Tube-squaring attachment
摘要
申请公布号	US2519982(A)	申请公布日期	1950.08.22
申请号	US19470760667	申请日期	1947.07.12
申请人	WILLIAM F. STAHL	发明人	RYSZKOWSKI STANLEY
分类号	B31C11/02	主分类号	B31C11/02
代理机构		代理人
主权项
地址

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