• 

  NATIONAL SEMICONDUCTOR CORPORATION

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  NEMIC LAMBDA

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  Ohmic Instruments

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  Oilfiled Microbiology Services LTD

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  Oleodinamica Geco

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  Oleodinamica O.R.T.A.

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  Oxyde Chemicals

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  Plessey Semiconductors

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  RFMD RF Micro Devices

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  Samick