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US7103188B1
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Variable gain active noise cancelling system with improved residual noise sensing
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GB189722125A
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Improvements relating to the Handle-bars of Bicycles and the like.
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Improvements relating to the Handle-bars of Bicycles and the like.
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Improvements in Bicycles and other Velocipedes.
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Improvements relating to Machine-guns, and to Cartridge Feed Mechanism therefor.
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Improvements relating to Machine-guns and to Cartridge Feed- mechanism therefor.
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