Spring mounting for door closers,申请号US19540423711-传众专利搜索

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发明名称	Spring mounting for door closers
摘要
申请公布号	US2709274(A)	申请公布日期	1955.05.31
申请号	US19540423711	申请日期	1954.04.16
申请人	JORGENSON ANTON J	发明人	JORGENSON ANTON J.
分类号	E05F1/10	主分类号	E05F1/10
代理机构		代理人
主权项
地址

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