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Quick-coupler device
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Patent number 7,198,451
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Issue date Apr 3, 2007
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Alois Wimmer
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Concrete crusher with cutting shears
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Patent number 5,704,560
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Issue date Jan 6, 1998
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Wimmer Hartstahl GesmbH & Co. KG
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Alois Wimmer
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Exchangeable element subject to wear
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Patent number 5,188,158
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Issue date Feb 23, 1993
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Bohler Ybbstalwerke GmbH
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Manfred Gstettner
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Hammer-swinging mechanism
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Patent number 5,111,888
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Issue date May 12, 1992
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Alois Wimmer
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING