4. Fire escape, ladder, or scaffold
  5. Plural platforms, common support
  6. Mounted for relative motion

Dan Lee

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Multiple lift platform with lateral movement

Fire escape – ladder – or scaffold – Plural platforms – common support – Mounted for relative motion
Patent

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Wellbore mechanism for liquid and gas discharge

Wells – With eduction pump or plunger – Receptacles
Reexamination Certificate

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Wellbore pump

Wells – Processes – Producing the well
Reexamination Certificate

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Wellbore pump

Wells – Processes – Producing the well
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1322138

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