4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

John P. Sumner

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Addressing system for simultaneously polling plural remote stati

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Chimney cleaner

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent

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Chip package capacitor cover

Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent

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Compact optical system

Patent

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Detector cold shield

Radiant energy – Infrared-to-visible imaging – Including means for scanning field of view
Patent

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Profile ID: LFUS-PAI-P-90536

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