4. Telephonic communications
  5. Terminal
  6. Switch or switch actuator structure

Casimer Gotfryd

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Quiet key switch

Electricity: circuit makers and breakers – Snap – Double snap
Patent

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Stand-alone keyboard

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Telephone line switch apparatus

Telephonic communications – Terminal – Switch or switch actuator structure
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Profile ID: LFUS-PAI-P-274438

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