4. Photocopying
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Optical member drive system for copying machine

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

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Optical positioning apparatus for electrophotographic copying ma

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

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Optical system and method for the production of...

Photocopying – Projection printing and copying cameras – Focus or magnification control
Reexamination Certificate

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Optical system featuring change in magnification by combined le

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

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Optical system for electrostatic copiers

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

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Optical system for projecting patterns comprising a constant-mag

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

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Optical system for providing visual aid for proper magnification

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

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Optical system supporting mechanism for an image processing equi

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

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Optically imaging method and apparatus

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

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Optically variable magnification mechanism

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

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