4. Optics: image projectors
  5. Selective data retrieval
  6. Plural picture rows on single microcard

Adolf Koopmann

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Autoloading microfiche reader

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent

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Collapsible microfilm reader

Optics: image projectors – Projector or screen removable from common housing
Patent

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Microfilm reader

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent

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Microfilm reading and reverse enlarging apparatus

Photocopying – Projection printing and copying cameras – With focusing or projection screen
Patent

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Portable microfilm reader

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent

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Profile ID: LFUS-PAI-P-593735

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