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Back focus controlling device in optical systems

Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent

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Background brightness control for document copier

Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent

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Background removal apparatus

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

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Backside alignment system and method

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Balanced photoconductor usage control system

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

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Balanced positioning system for use in lithographic apparatus

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Balanced positioning system for use in lithographic apparatus

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Balanced positioning system for use in lithographic apparatus

Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Reexamination Certificate

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Balanced positioning system for use in lithographic apparatus

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Balanced positioning system for use in lithographic apparatus

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Balanced positioning system for use lithographic apparatus

Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Reexamination Certificate

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Beam output control method, beam output apparatus and...

Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate

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Beam-splitter optics design that maintains an unflipped...

Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate

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Beam-splitter optics design that maintains an unflipped...

Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate

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Beam-splitter optics design that maintains an unflipped...

Photocopying – Projection printing and copying cameras – Reflector between original and photo-sensitive paper
Reexamination Certificate

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Beamsplitter type lens elements with pupil-plane stops for litho

Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent

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Bearing arrangement for reaction mass in a controlled...

Photocopying – Projection printing and copying cameras – Detailed holder for original
Reexamination Certificate

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Bearing arrangement for reaction mass in a controlled...

Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate

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Belt color filters in an image recording apparatus

Photocopying – Projection printing and copying cameras – Multicolor picture
Patent

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Belt microfilm camera

Photocopying – Projection printing and copying cameras – Image transferred from individual documents to film strip
Patent

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