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US3441741A
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Synchro receiver responsive to the relative movement between two gratings
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GB1107982A
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Improvements in or relating to control systems for controlling the movement and/or displacement of a member
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GB1096022A
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Improvements in or relating to apparatus for detecting and indicating the extent of relative movement
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GB1046852A
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Improvements relating to electrical measuring or indicating instruments
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GB991907A
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Apparatus for detecting and indicating the extent of relative movement
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GB838422A
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Guide device for strip material in a processing machine
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GB676104A
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Improvements in and relating to electric fusible cut-outs
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