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发明名称
Perfectionnements aux machines pour la rectification des sièges de robinets-vannes
摘要
申请公布号
FR1144120(A)
申请公布日期
1957.10.09
申请号
FRD1144120
申请日期
1954.11.09
申请人
DEWRANCE & CO LIMITED
发明人
分类号
B24B15/02
主分类号
B24B15/02
代理机构
代理人
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地址
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