COIL SPRING OR FRICTION-LOCK MECHANISMS,申请号US19900522210-传众专利搜索

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发明名称	COIL SPRING OR FRICTION-LOCK MECHANISMS
摘要
申请公布号	US5150771(A)	申请公布日期	1992.09.29
申请号	US19900522210	申请日期	1990.05.11
申请人	P. L. PORTER COMPANY	发明人	PORTER, CLYDE R.
分类号	A47C1/027;E05B15/00;E05C17/30;F16B7/14;F16F11/00	主分类号	A47C1/027
代理机构		代理人
主权项
地址

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