4. Measuring and testing
  5. Navigation
  6. Take-off and landing monitors

Jonas Lonnroth

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Compass-rose scale

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent

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Method of navigation for sailing boats

Measuring and testing – Navigation – Take-off and landing monitors
Patent

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Profile ID: LFUS-PAI-P-1347143

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