4. Electricity: circuit makers and breakers
  5. Solid contact
  6. Membrane type

Chih-Hsiang Chiang

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Computer keyswitch with accurately positioned rubber domes

Electricity: circuit makers and breakers – Solid contact – Membrane type
Reexamination Certificate

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Fastening mechanism for detachable keyboard modules

Joints and connections – Biased catch or latch – By separate spring
Reexamination Certificate

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Flexible printed circuit board

Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate

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Illuminated keyboard switch structure

Illumination – Illuminated scale or dial – Internal light source
Reexamination Certificate

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Key structure

Typewriting machines – Key-board or key lever-actuating mechanism – Key-cap or key-stem structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2043720

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