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George M. Romack
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Washington, IL, US
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last 30 patents
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Patent Grant
Cylinder with internal pushrod
Patent number
7,441,405
Issue date
Oct 28, 2008
Caterpillar Inc.
Robert A. Aarestad
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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last 30 patents
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Patent Application
Cylinder With Internal Pushrod
Publication number
20070227133
Publication date
Oct 4, 2007
Caterpillar Inc.
Robert A. Aarestad
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Patent Application
Cylinder with internal pushrod
Publication number
20050066655
Publication date
Mar 31, 2005
Robert A. Aarestad
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING