Screw and its method of manufacture,申请号US19410405678-传众专利搜索

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发明名称	Screw and its method of manufacture
摘要
申请公布号	US2314391(A)	申请公布日期	1943.03.23
申请号	US19410405678	申请日期	1941.08.06
申请人	NEW PROCESS SCREW CORPORATION	发明人	VELLIER WILLIAM A. DE
分类号	B21H3/02;B21K1/44;F16B25/10	主分类号	B21H3/02
代理机构		代理人
主权项
地址

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