Improvements in or relating to door springs,申请号GB19320014818-传众专利搜索

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发明名称	Improvements in or relating to door springs
摘要
申请公布号	GB395135(A)	申请公布日期	1933.07.13
申请号	GB19320014818	申请日期	1932.05.25
申请人	BROOKES & ADAMS, LIMITED;ARNOLD EDWIN BROOKES	发明人
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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