Improvements in or relating to buttons,申请号GB19500018458-传众专利搜索

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发明名称	Improvements in or relating to buttons
摘要
申请公布号	GB676342(A)	申请公布日期	1952.07.23
申请号	GB19500018458	申请日期	1950.07.24
申请人	OLE OLSEN BULL	发明人
分类号	A44B1/12	主分类号	A44B1/12
代理机构		代理人
主权项
地址

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