4. Measuring, testing, or signalling instruments
  5. Clock or clock case
  6. Changeable exhibitor, e.g., digital type

Yoshisaburo Yoshida

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Clock

Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent

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Digital clock

Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent

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Solar battery powered electronic calculator

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent

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Thin keyboard with changeable key indicia

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Profile ID: LFUS-PAI-P-458258

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