4. Chemistry: electrical current producing apparatus, product, and
  5. Current producing cell, elements, subcombinations and...
  6. Electrode

Richard C. Cooper

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Alkaline cells that are substantially free of mercury

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent

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Battery voltage tester for end of cell

Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means – For charge or liquid level
Patent

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Device and process for the recovery of cadmium and nickel

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent

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Flashlight switch

Electricity: single generator systems – Generator control – With excitation winding and/or circuit control
Patent

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Lantern

Lighting – Light fixture – Hand-held – body-attached or lantern type
Patent

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Profile ID: LFUS-PAI-P-362106

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