Process for manufacturing a hollow material of precious metal with its longitudinal opening closed with a welding material which can be attacked by acid,申请号IT1995VI00038-传众专利搜索

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发明名称	Process for manufacturing a hollow material of precious metal with its longitudinal opening closed with a welding material which can be attacked by acid
摘要
申请公布号	IT1280285(B1)	申请公布日期	1998.01.08
申请号	IT1995VI00038	申请日期	1995.03.13
申请人	GHEZZO ROBERTO	发明人	GHEZZO ROBERTO
分类号	A44C	主分类号	A44C
代理机构		代理人
主权项
地址

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