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发明名称
Improved packing means for hydraulic jacks
摘要
申请公布号
GB648398(A)
申请公布日期
1951.01.03
申请号
GB19470028226
申请日期
1947.10.22
申请人
ERNST WIRZ
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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