4. Geometrical instruments
  5. Area integrators
  6. Electrical

David J. Barich

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Mapping system for an internal cylindrical surface

Geometrical instruments – Area integrators – Electrical
Patent

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Railcar maintenance facility

Railways – Miscellaneous
Reexamination Certificate

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Railcar maintenance management method

Railway switches and signals – Train dispatching – Spacing
Reexamination Certificate

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Railcar maintenance management system

Communications: electrical – Traffic control indicator
Reexamination Certificate

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Railcar maintenance process

Metal working – Method of mechanical manufacture – Repairing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1290361

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