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发明名称
HYDRAULIC SETTING TOOL
摘要
申请公布号
EP0328327(B1)
申请公布日期
1993.04.21
申请号
EP19890301125
申请日期
1989.02.06
申请人
HALLIBURTON COMPANY
发明人
STREICH, STEVEN G.
分类号
E21B23/06
主分类号
E21B23/06
代理机构
代理人
主权项
地址
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Installation duct of insulating plastic - has dimensions adapted to those of switches, socket outlets etc., with attachment for fastening partition
Plastics clad material - with plastics layer in upper material zone to encapsulate individual fibres
Axle sealing system with collar - has adjusting ring bearing against contact surface and has elastic intermediate layer
Pneumatic quick clamping piston - has self restricting area for pressure ball location and automatic piston position indicator
Ceiling or wall grooved cladding plank - includes hooks on battens at intervals matching plank width
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Voice unit communications system - phase or frequency keys composite data blocks which check bits whilst voice link is suppressed during transmission
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