4. Elevator, industrial lift truck, or stationary lift for vehicle
  5. With barrier for regulating access to load support
  6. Operation variable for emergency, maintenance, or abnormal...

Ernst Studhalter

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Elevator shaft closure and method of fulfilling fire...

Elevator – industrial lift truck – or stationary lift for vehicle – With closure means for shaft opening through landing
Reexamination Certificate

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Emergency unlocking device at shaft doors of elevators

Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Operation variable for emergency – maintenance – or abnormal...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2893166

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