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US3232473A
|
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Resilient biased closure for container openings
|
|
US2847260A
|
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Rod stabilizer device for wells
|
|
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|
|
Remote control locking means
|
|
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|
|
Pipe coupling
|
|
US2226304A
|
|
Pipe coupling and sealing means
|
|
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|
|
Gripping and coupling means
|
|
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|
|
Well equipment
|
|
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|
|
Well string
|
|
US2095244A
|
|
Well equipment
|
|
US2002140A
|
|
Well equipment
|
|
US1970078A
|
|
Pipe coupling
|
|
US1930194A
|
|
Pipe coupling
|
|
US1833776A
|
|
Pipe coupling
|
|
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|
|
Swab and unloader
|
|
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|
|
Valve
|
|
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|
|
Pipe coupling
|
|
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|
|
Catching device for well tubing
|
|
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|
|
Tubing catcher
|
|
US1629262A
|
|
Catching device for well tubing
|
|
US1629261A
|
|
Automatic catching device for well tubing
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