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GB409402A
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Improvements in or relating to photographic developing processes and apparatus
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GB401406A
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Improvements in or relating to photographic developing processes and apparatus
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GB396876A
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Improvements in connection with arc lamps for photographic and like purposes
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GB374542A
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Improvements in and connected with golf tees
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GB364717A
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Apparatus for separating sheets of paper or other material whilst travelling in the same direction
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GB364709A
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Apparatus for separating sheets of paper or other material whilst travelling in the same direction
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GB354499A
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Improved means for cooling surfaces for use more particularly in duplicating or printing apparatus
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GB357613A
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Improvements in or relating to apparatus for washing and/or developing operations in the production of photographic prints
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GB323822A
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Reflector for use with mercury vapour lamps
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GB311509A
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Improved apparatus for developing blue prints and the like
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GB305310A
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Improved apparatus for developing photographic prints and the like
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GB298965A
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Improved apparatus for photographic developing
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GB207289A
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Means for checking or exhausting the momentum of a reciprocating body or bodies on approaching the end of the traverse
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GB181460A
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Improvements in machines for sensitizing papers and other fabrics
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GB181461A
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Improved apparatus for the continuous washing and drying of blue prints and the like
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GB170967A
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Improvements in and connected with photographic printing or continuous copying machines
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GB153409A
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Improvements in arc lamps for photographic and other purposes
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GB157501A
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An improved period escapement applicable to penetrometers and other purposes
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