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Ionic disc bonding model
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Patent number 12,118,894
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Issue date Oct 15, 2024
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Russell Kenneth Dollinger
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Magnetic device
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Patent number 7,071,802
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Issue date Jul 4, 2006
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Hiromori Corporation
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Junji Hiromori
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Basic educational system
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Patent number 6,354,840
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Issue date Mar 12, 2002
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Thalia I. Armstrong
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Basic educational system
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Patent number 6,030,228
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Issue date Feb 29, 2000
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Thalia I. Armstrong
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Magnetic frame kit
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Patent number 6,010,338
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Issue date Jan 4, 2000
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Kelly H. Watson
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Multi-sided word kit
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Patent number 5,993,218
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Issue date Nov 30, 1999
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Magnetic Poetry, Inc.
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David Kapell
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Magnetic manipulatives book
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Patent number 5,820,383
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Issue date Oct 13, 1998
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Innovative USA, Inc.
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Michael Levins
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Learning apparatus
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Patent number 5,811,705
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Issue date Sep 22, 1998
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Catharine Helena Glenn
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Educational toy
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Patent number 4,998,883
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Issue date Mar 12, 1991
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Christie Brinkley
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Surface mounted magnetic toy
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Patent number 4,952,153
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Issue date Aug 28, 1990
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Norma J. McAllister
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Magnetic toy cart
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Patent number 4,464,125
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Issue date Aug 7, 1984
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Theodore J. Lierl
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS