4. Typewriting machines
  5. Including interposed inking device for record-medium
  6. Endless ribbon or cartridge therefor

Daniel Zhu

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Continuous self-inking ribbon cartridge system

Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent

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Optoelectronic module with integrated monitoring photodiode...

Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1012754

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