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Security label
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Patent number 4,268,983
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Issue date May 26, 1981
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Minnesota Mining and Manufacturing Company
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Jack E. Cook
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3643358
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Patent number 3,643,358
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Issue date Feb 22, 1972
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3273268
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Patent number 3,273,268
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Issue date Sep 20, 1966
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1901989
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Patent number 1,901,989
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Issue date Mar 21, 1933
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1709321
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Patent number 1,709,321
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Issue date Apr 16, 1929
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1619271
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Patent number 1,619,271
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Issue date Mar 1, 1927
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1517718
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Patent number 1,517,718
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Issue date Dec 2, 1924
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1511149
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Patent number 1,511,149
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Issue date Oct 7, 1924
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1492633
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Patent number 1,492,633
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Issue date May 6, 1924
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B44 - DECORATIVE ARTS
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1477466
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Patent number 1,477,466
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Issue date Dec 11, 1923
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1474706
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Patent number 1,474,706
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Issue date Nov 20, 1923
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1467961
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Patent number 1,467,961
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Issue date Sep 11, 1923
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B60 - VEHICLES IN GENERAL
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1443383
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Patent number 1,443,383
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Issue date Jan 30, 1923
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1364025
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Patent number 1,364,025
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Issue date Dec 28, 1920
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1333478
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Patent number 1,333,478
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Issue date Mar 9, 1920
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1251491
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Patent number 1,251,491
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Issue date Jan 1, 1918
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS