4. Electric heating
  5. Heating devices
  6. Combined with diverse-type art device

Ryoichi Koga

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Earthquake detecting apparatus

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Electric water heating device with decreased mineral scale depos

Electric heating – Heating devices – Combined with diverse-type art device
Patent

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Wrist watch

Measuring – testing – or signalling instruments – Watch – wristwatch or case
Patent

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Wrist watch

Measuring – testing – or signalling instruments – Watch – wristwatch or case
Patent

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Wrist watch

Measuring – testing – or signalling instruments – Watch – wristwatch or case – Combined
Patent

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Profile ID: LFUS-PAI-P-235335

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