4. Card, picture, or sign exhibiting
  5. Display device with magnetically moved object

Hiroyasu Okutsu

Inventor

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Duplication printer

Printing – Rolling contact machines – Bed-and-cylinder
Patent

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Magnetic display device

Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Patent

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Wall-hanging type magnetic displaying device

Card – picture – or sign exhibiting – Display device with magnetically moved object
Patent

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Profile ID: LFUS-PAI-P-606944

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