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Aircraft flight simulating trainer
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Patent number 4,276,702
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Issue date Jul 7, 1981
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Pacer Systems, Inc.
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Joshua Horwitz
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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NDB Instrument flight trainer
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Patent number 4,226,028
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Issue date Oct 7, 1980
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David P. Robson
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Omega simulation
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Patent number 4,134,217
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Issue date Jan 16, 1979
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The Singer Company
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Scott B. Neilson
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3906643
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Patent number 3,906,643
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Issue date Sep 23, 1975
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3832708
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Patent number 3,832,708
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Issue date Aug 27, 1974
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3824324
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Patent number 3,824,324
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Issue date Jul 16, 1974
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3743754
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Patent number 3,743,754
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Issue date Jul 3, 1973
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3665086
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Patent number 3,665,086
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Issue date May 23, 1972
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3663734
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Patent number 3,663,734
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Issue date May 16, 1972
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3628256
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Patent number 3,628,256
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Issue date Dec 21, 1971
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3548063
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Patent number 3,548,063
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Issue date Dec 15, 1970
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3546352
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Patent number 3,546,352
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Issue date Dec 8, 1970
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3517108
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Patent number 3,517,108
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Issue date Jun 23, 1970
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3500439
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Patent number 3,500,439
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Issue date Mar 10, 1970
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G06 - COMPUTING CALCULATING COUNTING
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3485929
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Patent number 3,485,929
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Issue date Dec 23, 1969
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3451144
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Patent number 3,451,144
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3363331
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Patent number 3,363,331
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Issue date Jan 16, 1968
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3364297
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Patent number 3,364,297
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Issue date Jan 16, 1968
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3020649
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Patent number 3,020,649
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Issue date Feb 13, 1962
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3004350
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Patent number 3,004,350
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Issue date Oct 17, 1961
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3002291
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Patent number 3,002,291
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Issue date Oct 3, 1961
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2953642
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Patent number 2,953,642
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Issue date Sep 20, 1960
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2947088
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Patent number 2,947,088
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Issue date Aug 2, 1960
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS