4. Card, picture, or sign exhibiting
  5. Display card
  6. Having a curved display panel

Jack Kao

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Picture frame with sound producing means

Card – picture – or sign exhibiting – Picture frame – With sound producing means
Patent

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Sound producing control switch for a picture-frame

Card – picture – or sign exhibiting – Display card – Having a curved display panel
Patent

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Profile ID: LFUS-PAI-P-3617

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