4. Aeronautics and astronautics
  5. Aircraft structure
  6. Passenger or crew accommodation

Bertil R. L. Werjefelt

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Emergency vision apparatus

Aeronautics and astronautics – Aircraft structure – Passenger or crew accommodation
Reexamination Certificate

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Emergency vision device

Aeronautics and astronautics – Aircraft structure – Passenger or crew accommodation
Patent

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Emergency vision device

Aeronautics and astronautics – Aircraft structure – Passenger or crew accommodation
Patent

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Environmental control system and method

Refrigeration – Processes – Circulating external gas
Patent

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Smoke evacuation device

Ventilation – Vehicle – Aircraft
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1490848

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