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Reflector base
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Patent number 6,461,077
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Issue date Oct 8, 2002
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Hallen Products, Ltd.
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Allen D. Siblik
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Drum closure assembly
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Patent number 5,584,410
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Issue date Dec 17, 1996
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Hallen Products Ltd.
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Allen D. Siblik
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Roadway marker
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Patent number 5,454,664
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Issue date Oct 3, 1995
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Hallen Products Ltd.
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Allen D. Siblik
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Drum closure assembly
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Patent number 5,215,206
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Issue date Jun 1, 1993
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Hallen Products, Ltd.
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Allen D. Siblik
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Security door and lock assembly
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Patent number 4,762,347
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Issue date Aug 9, 1988
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Hallen Products, Ltd.
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Allen D. Siblik
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES