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Trench box
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Patent number 4,850,747
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Issue date Jul 25, 1989
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Aldo Morelli
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Excavator
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Patent number 4,791,737
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Issue date Dec 20, 1988
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Aldo Morelli
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Air filter
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Patent number 4,764,191
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Issue date Aug 16, 1988
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Aldo Morelli
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Excavator
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Patent number 4,725,187
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Issue date Feb 16, 1988
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Aldo Morelli
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Magnetic oil filter module
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Patent number 4,705,626
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Issue date Nov 10, 1987
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Aldo Morelli
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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-
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Trench box
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Patent number 4,659,260
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Issue date Apr 21, 1987
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Aldo Morelli
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING