Prestretched coiled spring for installation without tools,申请号US19610082049-传众专利搜索

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发明名称	Prestretched coiled spring for installation without tools
摘要
申请公布号	US3014711(A)	申请公布日期	1961.12.26
申请号	US19610082049	申请日期	1961.01.11
申请人	DELVAUX ARTHUR L	发明人	DELVAUX ARTHUR L.
分类号	E05D15/40;E05D15/42;F16F1/06	主分类号	E05D15/40
代理机构		代理人
主权项
地址

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