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DE620613C
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Device for optical copying of titles into movies
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DE625110C
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Process for the production of duplicate negatives or positives of lesser graininess from normally exposed image or image tone strips
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DE621677C
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Process for the regeneration and desilvering of fixing salt solutions
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DE603361C
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Process for the preparation of duplicate photographic negatives
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DE562088C
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Process for the blue toning of photographic silver images by means of a single toning bath
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DE689346C
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Process for the production of audio strips
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DE557145C
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Procedure for copying foot titles
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DE586440C
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Process for the production of audio-visual films in which the audio and video recordings are developed together
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DE584225C
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Process for the production of sound film duplicates
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DE598127C
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Process for the production of sound film copies
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DE577614C
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Process for the production of monochrome or multicolored light-tone films
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DE627439C
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Process for the production of sound film copies
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DE469810C
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Process for developing photographic film
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DE477503C
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Process for the production of photographic copies on opaque film material provided on both sides with a silver salt emulsion
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DE528087C
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Method of applying border strips to photographic sound writing
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DE539529C
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Apparatus for copying photographic sound writing
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DE581857C
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Device for cleaning picture and sound films when copying by means of a draft
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DE595343C
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Cinematographic combination process
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DE539045C
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Process for the production of sound film copies
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DE589384C
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Process for the photographic recording of sound recordings
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