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Cart return credit system
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Patent number 6,975,205
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Issue date Dec 13, 2005
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Carttronics, LLC
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John French
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G06 - COMPUTING CALCULATING COUNTING
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Product information system
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Patent number 6,820,062
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Issue date Nov 16, 2004
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Digicomp Research Corporation
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Om P. Gupta
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Locking device
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Patent number 6,220,066
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Issue date Apr 24, 2001
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ASSA AB
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Åke Häggström
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Cart management system
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Patent number 6,142,283
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Issue date Nov 7, 2000
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Smarte Carte, Inc.
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Keith L. Amdahl
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G06 - COMPUTING CALCULATING COUNTING
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Cart management system
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Patent number 6,125,985
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Issue date Oct 3, 2000
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Smarte Carte, Inc.
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Keith L. Amdahl
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G06 - COMPUTING CALCULATING COUNTING
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Card for a pledge lock
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Patent number 6,102,288
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Issue date Aug 15, 2000
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Vendoret Holding S.A.
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Horst Merchel
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G06 - COMPUTING CALCULATING COUNTING
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Cart management system and method
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Patent number 6,024,203
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Issue date Feb 15, 2000
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Smarte Carte, Inc.
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Keith L. Amdahl
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Cart management system
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Patent number 5,921,373
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Issue date Jul 13, 1999
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Smart Carte, Inc.
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Keith L. Amdahl
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G06 - COMPUTING CALCULATING COUNTING
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Card for a pledge lock
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Patent number 5,655,395
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Issue date Aug 12, 1997
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Vendoret Holding S.A.
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Horst Merchel
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G06 - COMPUTING CALCULATING COUNTING
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Cart management system
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Patent number 5,526,916
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Issue date Jun 18, 1996
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Smarte Carte, Inc.
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Keith L. Amdahl
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Card for a pledge lock
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Patent number 5,513,507
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Issue date May 7, 1996
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Vendoret Holding S.A.
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Horst Merchel
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G06 - COMPUTING CALCULATING COUNTING
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