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Improvements in or relating to particulate solid materials
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Improvements in or relating to the manufacture of commutors
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Improvements in or relating to cartridges
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Improvements in or relating to incinerators or the like
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Improvements in or relating to piezoelectric crystals
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Improvements in or relating to piezoelectric crystals
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Improvements in or relating to helicopters
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Improvements in or relating to perfumes and processes for preparing the same
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Improvements in or relating to coated abrasives
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Improvements in or relating to composite structures
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Improvements in or relating to conveyors
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Improvements in or relating to composite wrapping materials
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Improvements in or relating to revolving joints
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Improvements in or relating to machines for grinding the surfaces of tiles and the like
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Improvements in or relating to protein adhesives
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Improvements in or relating to the making of gloves
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Improvements in and relating to windows and the like
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Improvements in or relating to the production of fluoroacetamide
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Improvements in or relating to the production of fluoroacetamide