Improvements in device for upsetting metal,申请号GB19460006362-传众专利搜索

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发明名称	Improvements in device for upsetting metal
摘要
申请公布号	GB608900(A)	申请公布日期	1948.09.22
申请号	GB19460006362	申请日期	1946.03.01
申请人	ENGINEERING AND RESEARCH CORPORATION	发明人
分类号	A61F7/02;B21D11/08	主分类号	A61F7/02
代理机构		代理人
主权项
地址

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