4. Ventilation
  5. Elevator

Franz Kappeler

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Acoustical seal for elevator car doors

Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent

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Apparatus for ventilating the interior of high speed elevator ca

Ventilation – Elevator
Patent

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Array of coupled optical waveguides

Coherent light generators – Particular component circuitry – Optical pumping
Patent

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Circuit arrangement for generating light pulses

Coherent light generators – Particular component circuitry – Having noise suppression circuitry
Reexamination Certificate

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Device for writing on thermographic material

Drying and gas or vapor contact with solids
Reexamination Certificate

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Profile ID: LFUS-PAI-P-763473

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