WO9202836A1
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Optical fibre connector
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FR2665771A1
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Improvement to fibre-optics connectors
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FR2665772A2
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Improvement to magnetically controlled optical switches
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FR2637138A1
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Improvements to optical mirror keyboards
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FR2618914A1
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Improvements to optomagnetic switches
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EP0258363A1
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Improvements to optical scanning keyboards.
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DE3779837D1
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MEASURES TO IMPROVE OPTICAL KEYPADS WITH SCAN.
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FR2604658A1
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Array scanning keyboard
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FR2597988A1
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IMPROVING MATRIX SCANNING OPTICAL KEYBOARDS
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FR2596222A1
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Improvement of optical keyboards
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FR2595022A1
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Optical keyboard
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WO8601954A1
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Optical keyboard
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FR2579788A2
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Optical keyboard for a computer
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FR2576433A1
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Optical keyboard for a computer
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