4. Photocopying
  5. Projection printing and copying cameras
  6. Combined with or convertible to a contact printer

Robert D. Gengelbach

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Adjusting copy contrast and density

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent

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Back-reflecting LED light source

Illumination – Light source and modifier – With ventilating – cooling or heat insulating means
Reexamination Certificate

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Compact non-imaging light collector

Optical: systems and elements – Lens – With reflecting element
Reexamination Certificate

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High-brightness LED-phosphor coupling

Illumination – Light source or light source support and luminescent material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1528818

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