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GB1111682A
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A photographic device
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GB443385A
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Improvements in or relating to mould boxes for moulding concrete blocks and the like
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US1997519A
|
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Machine for mixing concrete and other granular materials
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US1996543A
|
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Machine for mixing concrete and other granular materials
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GB414655A
|
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An improved driving mechanism for driving horizontal drum mixers for mixing concrete and other granular materials
|
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GB415379A
|
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Improvements in and relating to methods and machines for mixing concrete and other granular materials
|
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GB415381A
|
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Improvements in or relating to machines for mixing concrete and other granular materials
|
|
GB415380A
|
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Improvements in or relating to machines for mixing concrete and other granular materials
|
|
GB326754A
|
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Improvements in and relating to means for sharpening safety razor blades
|
|
GB316817A
|
|
Improvements in and relating to moulds for casting concrete blocks and the like
|
|
GB272136A
|
|
Improvements in and relating to machines for moulding plastic substances
|
|
GB272131A
|
|
Improvements in and relating to machines for moulding plastic substances
|
|
GB276882A
|
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An improved multiple mould box
|
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GB270973A
|
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An arrangement of plant for the manufacture of concrete blocks
|
|
GB272086A
|
|
Improvements in and relating to apparatus for moulding plastic substances
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|
GB242507A
|
|
Improvements in concrete walls and like building construction
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GB234406A
|
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Improvements in and relating to concrete mixing machines
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|
GB242732A
|
|
Improvements in and relating to apparatus for moulding plastic substances
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GB191269A
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Improvements in or relating to screening apparatus
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