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经营范围
发明名称
Nouvelle matière céramique et son procédé de fabrication
摘要
申请公布号
FR677939(A)
申请公布日期
1930.03.17
申请号
FRD677939
申请日期
1929.07.05
申请人
AC SPARK PLUG COMPANY
发明人
分类号
C04B33/02
主分类号
C04B33/02
代理机构
代理人
主权项
地址
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