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BR7906771A
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Construction work machine, as an automotive hydraulic pa
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WO7900651A1
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Public works machine,such as articulated automotive hydraulic shovel
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CA1051195A
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Machine for cleaning up the walls of underground galleries
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FR2365008A1
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Two piece excavator boom - has adjustable piece at elbow joint enabling position jib fulcrum and boom length to be varied
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JPS52139603A
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Heading wall scraping machine
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FR2340420A2
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Three point support suspension for excavator cab - has three hydraulic shock absorbers describing triangle and resisting rotation
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