MEJORAS EN LA PATENTE NuMERO 137874,申请号ES19220001482-传众专利搜索

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发明名称	MEJORAS EN LA PATENTE NuMERO 137874
摘要
申请公布号	ES148222(A2)	申请公布日期	1941.12.01
申请号	ES19220001482	申请日期	1940.03.20
申请人	SOCIETA ITALIANA PIRELLI	发明人
分类号	(IPC1-7):B61	主分类号	(IPC1-7):B61
代理机构		代理人
主权项
地址

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