Improvements relating to pertused or indented metal sheets and their manufacture and use,申请号GB19330004853-传众专利搜索

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发明名称	Improvements relating to pertused or indented metal sheets and their manufacture and use
摘要
申请公布号	GB409865(A)	申请公布日期	1934.05.10
申请号	GB19330004853	申请日期	1933.02.16
申请人	BAKER & COMPANY	发明人
分类号	B21D28/10	主分类号	B21D28/10
代理机构		代理人
主权项
地址

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