Improvements relating to the reproduction of patterns of holes,申请号GB19490025794-传众专利搜索

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发明名称	Improvements relating to the reproduction of patterns of holes
摘要
申请公布号	GB668346(A)	申请公布日期	1952.03.12
申请号	GB19490025794	申请日期	1949.10.07
申请人	PAINTER BROTHERS LIMITED;JAMES LEE NOCK	发明人
分类号	B21D28/26;B23B47/28	主分类号	B21D28/26
代理机构		代理人
主权项
地址

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