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4473823
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Issue date Sep 25, 1984
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G06 - COMPUTING CALCULATING COUNTING
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Communications system
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Patent number 4,127,845
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Issue date Nov 28, 1978
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General Signal Corporation
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David J. Dansbach
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G08 - SIGNALLING
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Bucket brigade circuits
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Patent number 4,107,550
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Issue date Aug 15, 1978
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International Business Machines Corporation
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Christian A. Jacquart
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G11 - INFORMATION STORAGE
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3811112
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Patent number 3,811,112
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Issue date May 14, 1974
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G08 - SIGNALLING
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3506964
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Patent number 3,506,964
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Issue date Apr 14, 1970
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3403382
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Patent number 3,403,382
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Issue date Sep 24, 1968
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3400218
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Patent number 3,400,218
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Issue date Sep 3, 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
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3289167
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Patent number 3,289,167
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B61 - RAILWAYS
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3263217
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Patent number 3,263,217
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B61 - RAILWAYS
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3219814
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Patent number 3,219,814
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B61 - RAILWAYS
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3213275
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Patent number 3,213,275
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B61 - RAILWAYS
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3109160
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Patent number 3,109,160
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Issue date Oct 29, 1963
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B61 - RAILWAYS