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发明名称
Piston packing
摘要
申请公布号
GB804778(A)
申请公布日期
1958.11.19
申请号
GB19570017678
申请日期
1957.06.04
申请人
THE NATIONAL SUPPLY COMPANY;THE OIL WELL ENGINEERING COMPANY LIMITED
发明人
KRETZER FRED PAUL
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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