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

John David Burns

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Air depolarized electrochemical button cell

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate

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Electrochemical cell anode and high discharge rate electrochemic

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent

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Low mercury, high discharge rate electrochemical cell

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent

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Low mercury, high discharge rate electrochemical cell

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent

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Metal-air cathode can having reduced corner and...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-509242

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