US3430321A
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Means for assembling together in coaxial relation two parts of different diameter
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GB1110130A
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Improvements in or relating to ammonia tanks for use in developing diazo sensitised material
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GB1080576A
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Improvements in or relating to diazotype materials
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GB1110317A
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Finger guide for laminar material endless conveying systems
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GB1108479A
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A coaxial assembly of a tube, a shaft and a plug
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GB1094126A
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Method and apparatus for collating and sorting sheets of laminar material
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GB1080539A
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Reflex copying process
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GB1108553A
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Apparatus for separating sheet material
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US3280717A
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Photographic developing machines
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GB1079231A
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Improvements in or relating to photographic reproducing apparatus
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GB1103582A
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Improvements in or relating to photographic developing machines
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GB1033893A
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Improvements in or relating to photographic developing machines
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GB1036572A
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Improvements in or relating to translucent paper
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US3136237A
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Photographic printing and developing apparatus
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GB1009468A
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Improvements in or relating to photographic apparatus
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GB924952A
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Improvements in straight edges
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GB978556A
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Improvements in photographic printing and developing apparatus
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GB858241A
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Drawing office appliances
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GB828085A
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A combined scale and scale support for a drafting machine
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GB847358A
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Improvements in or relating to drawing office appliances
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