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Vacuum head for film
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Method for slot copying and slot copying machine for carrying out the method
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Contact printing method and apparatus with electrostatic means for film registration
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Electrostatic registration for contact printing
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Duplication apparatus for continuous strips
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Contact printing method and apparatus with electrostatic means for film registration
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Apparatus for continuous contact printing
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Method and apparatus for making contact prints on a moving photosensitive strip
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Contact Printing on a Moving Light-Sensitive Element
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