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发明名称
MEJORAS EN LA PATENTE 137874
摘要
申请公布号
ES148217(A2)
申请公布日期
1941.12.01
申请号
ES19170001482
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
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地址
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