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

Edward A. Leffingwell

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Method for fabricating a rechargeable electrical cell pack havin

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Plug-in rechargeable battery and socket therefor

Chemistry: electrical current producing apparatus – product – and – Having polarity safety feature
Patent

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Rechargeable battery with separate charging terminal

Chemistry: electrical current producing apparatus – product – and – Having polarity safety feature
Patent

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Rechargeable electrochemical cell pack having overcurrent protec

Chemistry: electrical current producing apparatus – product – and – With nonbattery electrical component electrically connected...
Patent

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Profile ID: LFUS-PAI-P-1113752

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