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Fail-safe protector
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Patent number 5,187,634
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Issue date Feb 16, 1993
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ADC Telecommunications, Inc.
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Daniel M. Pitsch
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H01 - BASIC ELECTRIC ELEMENTS
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Thyristor fail-safe
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Patent number 5,155,650
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Issue date Oct 13, 1992
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ADC Telecommunications, Inc.
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Daniel M. Pitsch
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Terminal assembly
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Patent number 4,685,755
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Issue date Aug 11, 1987
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ADC Telecommunications, Inc.
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Daniel M. Pitsch
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H01 - BASIC ELECTRIC ELEMENTS
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