4. Boots, shoes, and leggings

Robert W. Levi

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Barometric floor level indicator

Data processing: vehicles – navigation – and relative location – Relative location
Reexamination Certificate

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Compact navigation device assembly

Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate

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Dead reckoning navigational system using accelerometer to measur

Boots – shoes – and leggings
Patent

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Gyro aided magnetic compass

Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Reexamination Certificate

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Multi-mode navigation device and method

Data processing: vehicles – navigation – and relative location – Navigation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-656018

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