Screw thread device,申请号US19320619875-传众专利搜索

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发明名称	Screw thread device
摘要
申请公布号	US1937547(A)	申请公布日期	1933.12.05
申请号	US19320619875	申请日期	1932.06.29
申请人	GOODMAN MANUFACTURING COMPANY	发明人	CARTLIDGE FRANK
分类号	E21D15/24;F16B37/16	主分类号	E21D15/24
代理机构		代理人
主权项
地址

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