SOIL-BREAKING AND SOFTENING APPARATUS
PURPOSE:To improve the working efficiency of the title apparatus by automatically carrying out the insertion and extraction of a blasting nozzle while running a tractor at a low speed. CONSTITUTION:Rotary power of a tractor is transmitted to a compressor and a transmission shaft 21 in a cylindrical...
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Main Author | |
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Format | Patent |
Language | English |
Published |
02.06.1989
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Subjects | |
Online Access | Get full text |
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