4. Photography
  5. Having variable focal length of camera objective
  6. Having indicator

Jun'ichi Iwamoto

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Battery check system

Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent

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Camera

Photography – Having variable focal length of camera objective – Having indicator
Patent

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Camera

Optical: systems and elements – Prism – With reflecting surface
Patent

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Camera

Patent

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Camera

Photography – Control circuit for sequencing at least three functions
Patent

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Profile ID: LFUS-PAI-P-159197

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