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Switch network
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Patent number 4,435,706
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Issue date Mar 6, 1984
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Allen-Bradley Company
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John E. Callan
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Count-down addressing system
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Issue date Jul 17, 1979
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Bell Telephone Laboratories, Incorporated
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Jules A. Bellisio
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3911316
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Patent number 3,911,316
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Issue date Oct 7, 1975
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3737858
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Patent number 3,737,858
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Issue date Jun 5, 1973
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G08 - SIGNALLING
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3678512
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Patent number 3,678,512
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Issue date Jul 18, 1972
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3544803
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Patent number 3,544,803
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Issue date Dec 1, 1970
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B60 - VEHICLES IN GENERAL
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3516061
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Patent number 3,516,061
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Issue date Jun 2, 1970
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3482089
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Patent number 3,482,089
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Issue date Dec 2, 1969
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G08 - SIGNALLING
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3384874
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Patent number 3,384,874
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Issue date May 21, 1968
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G08 - SIGNALLING
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3382485
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Issue date May 7, 1968
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3303470
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Patent number 3,303,470
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Issue date Feb 7, 1967
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H04 - ELECTRIC COMMUNICATION TECHNIQUE