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GB129537A
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Improvements in Apparatus for use in Developing, Washing and Drying Photo-prints.
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CA188079A
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Sprinkler
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US1239230A
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Sprinkler.
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US1239229A
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Sprinkler.
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GB191401346A
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Improved Means Adapted for use in Drying Photographic Prints.
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GB191318341A
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Improvements in Continuous Photo-printing Apparatus.
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US942796A
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Low-limit valve for gas-holders.
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US931506A
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Goggle-valve for gas-mains.
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US934846A
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Water-sealed valve.
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GB190815116A
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Improvements in and in connection with Arc-lamps.
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US902454A
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Automatic device for operating water seals for gas-mains.
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GB190420386A
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Improvements in or applicable to Photo-printing Apparatus.
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US742243A
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Photographic-printing apparatus.
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GB190222941A
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Improvements in the Construction and Working of Photo-printing Apparatus.
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GB189905561A
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Improved Means applicable for Use in the Production of Photo-prints.
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US906312A
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Automatic device for operating water seals for gas-mains.
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