Heat releasable device for hold open door closers,申请号US19540466020-传众专利搜索

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发明名称	Heat releasable device for hold open door closers
摘要
申请公布号	US2859842(A)	申请公布日期	1958.11.11
申请号	US19540466020	申请日期	1954.11.01
申请人	SCHLAGE LOCK COMPANY	发明人	SCHLAGE ERNEST L.
分类号	A62C2/12	主分类号	A62C2/12
代理机构		代理人
主权项
地址

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