4. Office supplies; artists and teachers materials
  5. Book, album or cover

Lai-Fu Chen

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Printing and office machinery – Typewriter or calculator – Calculator
Patent

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Folder with calculator

Office supplies; artists and teachers materials – Book – album or cover
Patent

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Low-noise fan-filter unit

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1001271

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