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发明名称
Modèle perdu sphéroïdal muni d'évidements, pour masselottes
摘要
申请公布号
FR1483684(A)
申请公布日期
1967.06.02
申请号
FR19660066030
申请日期
1966.06.18
申请人
GRUENZWEIG & HARTMANN AKTIENGESELLSCHAFT
发明人
分类号
B22C7/02
主分类号
B22C7/02
代理机构
代理人
主权项
地址
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