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Lower frame assembly
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Patent number 6,293,364
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Issue date Sep 25, 2001
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Caterpillar SARL
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Robert S. Anderson
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B60 - VEHICLES IN GENERAL
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Main frame assembly
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Patent number 6,205,665
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Issue date Mar 27, 2001
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Caterpillar SARL
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Robert S. Anderson
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Upper frame assembly
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Patent number 6,138,786
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Issue date Oct 31, 2000
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Caterpillar S.A.R.L.
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Robert S. Anderson
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Method of assembling a work machine
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Patent number 6,108,907
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Issue date Aug 29, 2000
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Caterpillar S.A.R.L.
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Robert S. Anderson
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Main frame assembly
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Patent number 6,098,739
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Issue date Aug 8, 2000
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Caterpillar S.A.R.L.
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Robert S. Anderson
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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