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4.	Analytical Instrument (4)

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6.	Calibration Service (17)

7.	Computer (253)

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12.	Multimedia Computer (11)

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18.	Computer Kit (1)

19.	Computer Programming Consultant (22)

20.	Computer Related (82)

21.	Computer Software Development (266)

22.	Computer Systems Integration Consultants (106)

23.	Computer Software Dealer (34)

24.	Computer Information Services (9)

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28.	Control Systems (78)

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41.	IT Products (129)

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50.

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