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经营范围
发明名称
Improvements in and relating to toric packings
摘要
申请公布号
GB933133(A)
申请公布日期
1963.08.08
申请号
GB19610014102
申请日期
1961.04.19
申请人
LE JOINT FRANCAIS
发明人
分类号
F16J15/32
主分类号
F16J15/32
代理机构
代理人
主权项
地址
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