Counterbalancing spring hinge,申请号US19500203128-传众专利搜索

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发明名称	Counterbalancing spring hinge
摘要
申请公布号	US2641795(A)	申请公布日期	1953.06.16
申请号	US19500203128	申请日期	1950.12.28
申请人	HEATILATOR, INC.	发明人	JAMES PAUL W.;REYNOLDS HERBERT G.
分类号	E05F1/12	主分类号	E05F1/12
代理机构		代理人
主权项
地址

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