Improvements in buttons,申请号GB19380008064-传众专利搜索

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发明名称	Improvements in buttons
摘要
申请公布号	GB512528(A)	申请公布日期	1939.09.19
申请号	GB19380008064	申请日期	1938.03.15
申请人	ERNST KLEINMANN;ALFRED MENDEL	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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