Improvements in or relating to the manufacture of cylindrical and conical tubes from plain plates,申请号GB19460036710-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of cylindrical and conical tubes from plain plates
摘要
申请公布号	GB632996(A)	申请公布日期	1949.12.05
申请号	GB19460036710	申请日期	1946.12.12
申请人	UGO RADAELLI;EZIO BERTOLI	发明人
分类号	B21D5/12;B21D11/20	主分类号	B21D5/12
代理机构		代理人
主权项
地址

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