4. Optical: systems and elements
  5. Compound lens system
  6. Microscope

Wilhelm Duis

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Microsurgical microscope system

Optical: systems and elements – Compound lens system – Microscope
Reexamination Certificate

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Operating microscope

Optical: systems and elements – Compound lens system – Microscope
Patent

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Optical sensor arrangement

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Profile ID: LFUS-PAI-P-591030

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