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发明名称
élément d'étanchéité annulaire pour presses hydrauliques télescopiques
摘要
申请公布号
FR946439(A)
申请公布日期
1949.06.02
申请号
FRD946439
申请日期
1947.05.09
申请人
发明人
WIRZ ERNST
分类号
B30B15/00;F16J15/32
主分类号
B30B15/00
代理机构
代理人
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地址
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