4. Geometrical instruments
  5. Area integrators
  6. Electrical

Richard D. Frye

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Arch door marking gauge

Geometrical instruments – Area integrators – Electrical
Patent

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Foldable auxilliary steering arm for trolling motors

Ships – Steering mechanism – Auxiliary
Patent

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Hose connectors and hoses equipped with same

Pipes and tubular conduits – Combined – With end structure
Patent

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Hose connectors and methods for making and applying same

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Mirrored device for eye drop users

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Profile ID: LFUS-PAI-P-619110

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