4. Electricity: circuit makers and breakers
  5. Multiple circuit control
  6. Multiple switch

Richard F. Kingsbury

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Method for making display device

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

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Pushbutton keyboard assembly with over center diaphragm contact

Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent

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Profile ID: LFUS-PAI-P-602419

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