4. Typewriting machines
  5. Sheet or web

Curtis G. Kelsay

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Laser refraction system

Optical: systems and elements – Optical modulator – Light wave directional modulation
Reexamination Certificate

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Media handling device and methods

Typewriting machines – Sheet or web
Reexamination Certificate

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Printer

Printing and office machinery – Printing equipment – Text or data printer
Design Patent

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Profile ID: LFUS-PAI-P-2793537

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