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Compass having a course directing pointer

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Course indicator

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Device for indicating direction to a predetermined locale

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Directional indicator

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Indicator of true wind direction for sail boats

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Magnetic heading reference

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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Spatial orientation device

Geometrical instruments – Indicator of direction of force traversing natural media – With preselected direction indicator
Patent

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