4. Telegraphy
  5. Systems
  6. Position coordinate determination for writing

Haruyuki Koizumi

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Alternate on-off switch mechanism

Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent

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Alternate on-off switch mechanism

Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent

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Coil spring for key switch

Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent

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Coordinate input sheet with correction electrodes

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Coordinate inputting sheet with auxiliary electrodes promoting a

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Profile ID: LFUS-PAI-P-336729

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