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Marker cone system
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Patent number 9,713,760
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Issue date Jul 25, 2017
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Joshua C. Peacock
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A63 - SPORTS GAMES AMUSEMENTS
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Tiltable support post structure
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Patent number 8,857,795
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Issue date Oct 14, 2014
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Protec Engineering, Inc.
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Yoichi Nishita
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Gate panel attachment assembly
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Patent number 6,389,659
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Issue date May 21, 2002
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Reliable Racing Supply, Inc.
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John F. Jacobs
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Permanent field marker
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Patent number 5,916,049
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Issue date Jun 29, 1999
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John N. Wagner
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A63 - SPORTS GAMES AMUSEMENTS
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Flexible boundary marker
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Patent number 5,215,033
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Issue date Jun 1, 1993
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Cartrol Enterprises, Inc.
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Gregg Gipp
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A63 - SPORTS GAMES AMUSEMENTS
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Resilient slalom gate
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Patent number 5,024,551
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Issue date Jun 18, 1991
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Hans Hinterholzer
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A63 - SPORTS GAMES AMUSEMENTS
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Mower guard for flexible markers
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Patent number 4,903,465
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Issue date Feb 27, 1990
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Flexstake, Inc.
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Robert K. Hughes
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Slalom post
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Patent number 4,871,279
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Issue date Oct 3, 1989
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Hans Hinterholzer
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Slalom post
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Patent number 4,702,639
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Issue date Oct 27, 1987
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Hans Hinterholzer
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Hinged slalom gate
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Patent number 4,636,109
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Issue date Jan 13, 1987
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Allsop, Inc.
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Eivind Clausen
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Self-redressing slalom pole
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Patent number 4,599,012
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Issue date Jul 8, 1986
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IMS-Kunststoffgesellschaft m.b.H.
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Wolfgang Kugler
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES