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1989-08-02
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1989-01-26
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1993-01-13
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1989-02-22
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1990-05-03
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1990-06-13
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1990-07-11
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1988-11-09
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1984-10-31
Telephone equipment test set
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1991-06-19
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1991-10-09
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1995-08-30
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1994-04-20
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1988-03-30
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1987-08-05
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1990-02-14
A unit for testing digital telecommunications exchange equipment
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1990-04-17
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1988-09-07
Method of testing telephone subscribers lines
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1986-02-12
Circuit for testing a digital circuit
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1989-12-28
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1989-01-11
Telecommunications equipment
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1991-02-06
Digital communications equipment test method
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1989-11-01
A method of testing an integrated circuit and one or more associated masks
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1991-09-11
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