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Clutch construction
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Patent number 5,209,331
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Issue date May 11, 1993
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M-B-W Inc.
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Thomas G. Artzberger
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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High velocity pneumatic device
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Patent number 5,170,943
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Issue date Dec 15, 1992
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M-B-W Inc.
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Thomas G. Artzberger
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Vibratory concrete screed
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Patent number 4,758,114
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Issue date Jul 19, 1988
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M-B-W Inc.
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Thomas G. Artzberger
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Hydraulic dockboard system
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Patent number 4,081,874
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Issue date Apr 4, 1978
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Kelley Company, Inc.
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Thomas G. Artzberger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Ramp construction for a dockboard
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Patent number 4,068,338
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Issue date Jan 17, 1978
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Kelley Company, Inc.
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Thomas G. Artzberger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Frame construction for a dockboard
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Patent number 4,014,059
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Issue date Mar 29, 1977
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Kelley Company, Inc.
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Thomas G. Artzberger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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