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3308337
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Patent number 3,308,337
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Issue date Mar 7, 1967
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G11 - INFORMATION STORAGE
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2896119
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Patent number 2,896,119
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Issue date Jul 21, 1959
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G11 - INFORMATION STORAGE
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2895073
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Patent number 2,895,073
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Issue date Jul 14, 1959
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G11 - INFORMATION STORAGE
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2888602
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Patent number 2,888,602
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Issue date May 26, 1959
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G11 - INFORMATION STORAGE
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2871401
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Patent number 2,871,401
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Issue date Jan 27, 1959
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G11 - INFORMATION STORAGE
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2854576
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Patent number 2,854,576
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Issue date Sep 30, 1958
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G11 - INFORMATION STORAGE
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2822506
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Patent number 2,822,506
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Issue date Feb 4, 1958
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G06 - COMPUTING CALCULATING COUNTING
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2807413
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Patent number 2,807,413
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Issue date Sep 24, 1957
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G06 - COMPUTING CALCULATING COUNTING
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2800599
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Patent number 2,800,599
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Issue date Jul 23, 1957
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G11 - INFORMATION STORAGE
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2664555
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Patent number 2,664,555
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Issue date Dec 29, 1953
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G11 - INFORMATION STORAGE