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Michael T. Fitzgerald
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Bolingbrook, IL, US
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last 30 patents
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Patent Grant
Performance monitoring system for T1 telephone lines
Patent number
5,689,546
Issue date
Nov 18, 1997
Teltrend Inc.
Laurence L. Sheets
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Dual span monitoring system for maintenance shelf control
Patent number
5,509,065
Issue date
Apr 16, 1996
Teltrend Inc.
Michael T. Fitzgerald
H04 - ELECTRIC COMMUNICATION TECHNIQUE