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21/2D core memory
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Patent number 4,096,583
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Issue date Jun 20, 1978
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Ampex Corporation
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Kurt Wright
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G11 - INFORMATION STORAGE
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3811710
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Patent number 3,811,710
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Issue date May 21, 1974
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3755797
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Patent number 3,755,797
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Issue date Aug 28, 1973
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G11 - INFORMATION STORAGE
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3530445
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Patent number 3,530,445
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Issue date Sep 22, 1970
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G11 - INFORMATION STORAGE
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3522593
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Patent number 3,522,593
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Issue date Aug 4, 1970
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G11 - INFORMATION STORAGE
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3441920
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Patent number 3,441,920
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Issue date Apr 29, 1969
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G11 - INFORMATION STORAGE
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3436750
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Patent number 3,436,750
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Issue date Apr 1, 1969
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G11 - INFORMATION STORAGE
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3434127
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Patent number 3,434,127
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Issue date Mar 18, 1969
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G11 - INFORMATION STORAGE
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3432820
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Patent number 3,432,820
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432818
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Patent number 3,432,818
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432821
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Patent number 3,432,821
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432829
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Patent number 3,432,829
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432819
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Patent number 3,432,819
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432826
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Patent number 3,432,826
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3432836
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Patent number 3,432,836
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Issue date Mar 11, 1969
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G11 - INFORMATION STORAGE
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3430214
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Patent number 3,430,214
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Issue date Feb 25, 1969
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G11 - INFORMATION STORAGE
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3423738
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Patent number 3,423,738
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Issue date Jan 21, 1969
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G11 - INFORMATION STORAGE
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3404387
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Patent number 3,404,387
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Issue date Oct 1, 1968
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G11 - INFORMATION STORAGE
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3392377
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Patent number 3,392,377
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Issue date Jul 9, 1968
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G11 - INFORMATION STORAGE
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3383666
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Patent number 3,383,666
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Issue date May 14, 1968
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G11 - INFORMATION STORAGE
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3374474
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Patent number 3,374,474
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Issue date Mar 19, 1968
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A62 - LIFE-SAVING FIRE-FIGHTING
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3371325
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Patent number 3,371,325
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Issue date Feb 27, 1968
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G11 - INFORMATION STORAGE
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3371328
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Patent number 3,371,328
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Issue date Feb 27, 1968
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G11 - INFORMATION STORAGE
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3346847
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Patent number 3,346,847
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Issue date Oct 10, 1967
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G11 - INFORMATION STORAGE
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3327296
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Patent number 3,327,296
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Issue date Jun 20, 1967
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G11 - INFORMATION STORAGE
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3324312
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Patent number 3,324,312
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G11 - INFORMATION STORAGE
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3323114
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Patent number 3,323,114
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Issue date May 30, 1967
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G11 - INFORMATION STORAGE
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3319233
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Patent number 3,319,233
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Issue date May 9, 1967
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G11 - INFORMATION STORAGE
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3308448
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Patent number 3,308,448
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Issue date Mar 7, 1967
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G11 - INFORMATION STORAGE