E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: Canada
Activating device for a downhole tool
Activating mechanism for hydraulically operable downhole tool
Ball operated by-pass tool for use in drillstring
Ball-activated mechanism for controlling the operation of a...
Dart-operated big bore by-pass valve
Activating device for a downhole tool
Activating mechanism for hydraulically operable downhole tool
Ball operated by-pass tool for use in drillstring
Ball-activated mechanism for controlling the operation of a...
Dart-operated big bore by-pass valve
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Profile ID: LFCA-PAI-P-1197105