4. Geometrical instruments
  5. Miscellaneous
  6. Light direction

Douglas A. Graham

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Collapsible foldaway dinghy

Ships – Boats – boat component – or attachment – Collapsible
Patent

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Digital goniometer

Geometrical instruments – Miscellaneous – Light direction
Patent

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System and method for data collection, management, and analysis

Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate

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Profile ID: LFUS-PAI-P-194448

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