BALANCED TORSION SPRING,申请号CA19912049580-传众专利搜索

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发明名称	BALANCED TORSION SPRING
摘要
申请公布号	CA2049580(A1)	申请公布日期	1993.02.21
申请号	CA19912049580	申请日期	1991.08.20
申请人	ZHANG, YUN H.	发明人	ZHANG, YUN H.
分类号	A47C7/34;A47C7/24;A47C23/00;(IPC1-7):F16F1/00	主分类号	A47C7/34
代理机构		代理人
主权项
地址

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